TS 10th Class Biology Bits 1st Lesson Nutrition

These TS 10th Class Biology Bits with Answers 1st Lesson Nutrition will help students to enhance their time management skills.

TS 10th Class Biology Bits 1st Lesson Nutrition

Choose the correct answer.

Question 1.
The acid present in gastric juice [ ]
A) Acetic acid
B) Hydrochloric acid
C) Sulphuric acid
D) Nitric acid
Answer:
B) Hydrochloric acid

Question 2.
Choose the correct statement about photosynthesis [ ]
A) Conversion of light energy to heat energy
B) Conversion of light energy to chemical energy
C) Conversion of light energy to electrical energy
D) Conversion of heat energy to chemical energy
Answer:
B) Conversion of light energy to chemical energy

Question 3.
Identify the mb-matched pair. [ ]
A) Haustoria – Cuscuta
B) Testosterone – Ovary
C) Granum – Chloroplast
D) Epiglossitis – Mouth
Answer:
B) Testosterone – Ovary

Question 4.
Identify the pair which is mismatched. [ ]
A) Protein – Amino acids
B) Carbohydrate — Glucose
C) Fats — Starch
D) Glucose — Starch
Answer:
C) Fats — Starch

Question 5.
For testing starch in the leaf, instead of Iodine, we can use …. [   ]
A) Betadine
B) Bromine
C) Chlorine
D) Benzene
Answer:
A) Betadine

Question 6.
Deficiency of Folk acid causes [ ]
A) Anaemia
B) Pellagra
C) Glossitis
D) Rickets
Answer:
A) Anaemia

Question 7.
Find the missing product in the equation. [  ]
\(\mathrm{CO}_2+2 \mathrm{H}_2 \mathrm{O} \frac{\text { Light }}{\text { Chlorophyll }} \mathrm{CH}_2 \mathrm{O}+\ldots \ldots . .+\mathrm{O}_2\)
A) CO₂
B) H₂O
C) C₆H₁₂O₆
D) 6SO₂
Answer:
B) H₂O

Question 8.
The glossitis disease Is caused due to a deficiency of vitamin ………. [ ]
A) B₁
B) B₂
C) B₃
D) B₆
Answer:
B) B₂

Question 9.
Iodine test is used to confirm the presence of ………..
A) Fats
B) Proteins
C) Vitamins
D) Carbohydrates
Answer:
D) Carbohydrates

Question 10.
Find the odd one different from the other three.
A) Carbohydrate
B) Fats
C) Proteins
D) Pyrethroids
Answer:
D) Pyrethroids

Question 11.
Match the following and identify the answer.
Name of the vitamin Deficiency disease
a. Thiamin (B₁) — 1. Scurvy
b. Citric acid (C) — 2. Night blindness
c. Retinol (A) — 3. Ben Ben
A) (a-3), (b-1), (c-2)
B) (a-1), (b-2), (c-3)
C) (a-2), (b-3), (c-1)
D) (a-3), (b-2), (c-1)
Answer:
A) (a-3), (b-1), (c-2)

Question 12.
Root like structure in cuscuta that penetrate the tissue of a host plant to absorb food is ……………
A) Dodder
B) Haustoria
C) Legume roots
D) Aerial roots
Answer:
B) Haustoria

Question 13.
The chemical used to remove Chlorophyll from the leaf in experiment is……………
A) Methylated spirit
B) KOH solution
C) Iodine solution
D) Acetic acid
Answer:
A) Methylated spirit

Question 14.
Chlorophyll : Magnesium:: Haemoglobin:……..
A) Sulphur
B) Iron
C) Phosphorus
D) Calcium
Answer:
B) Iron

Question 15.
The chemical used in the experiment to prove that Carbon-dioxide is essential for Photosynthesis is ………….
A) Diazine solution
B) Crystal violet
C) Safran in
D) Potassium hydroxide
Answer:
D) Potassium hydroxide

Question 16.
Delay in healing of wounds, fractures of bones are due to the deficiency of …………
A) Retinol
B) Niacin
C) Folic acid
D) Ascorbic acid
Answer:
D) Ascorbic acid

Question 17.
Which chemical is kept in the glass bottle in the experiment to prove that CO₂ . Is essential for photosynthesis?
A) Iodine
B) Methylated Spirit
C) Potassium Hydroxide
D) Alcohol
Answer:
D) Ascorbic acid

Question 18.
Identify the saprophytic organisms.
A) Bacteria
B) Fungi
C) Human beings
D) Bacteria and Fungi
Answer:
D) Bacteria and Fungi

Question 19.
Autotrophs are the organisms ……………
A) depend on others for their food.
B) synthesise their own food.
C) hunt for food.
D) cannot synthesize their food.
Answer:
B) synthesise their own food.

Question 20.
Autotrophs are capable of producing these large compounds from very simple substances.
A) Carbohydrates
B) Proteins
C) Lipids
D) All the above
Answer:
D) All the above

Question 21.
An equation for photosynthesis that was readily accepted and is still widely used is the one formulated by ………..
A) C.B. Van Neil
B) Von Helmont
C) Jan lngenhousz
D) Engelinan
Answer:
A) C.B. Van Neil

Question 22.
Iodine can be used to test the presence of ………….
A) Glucose
B) Light
C) Starch
D) Carbon dioxide
Answer:
C) Starch

Question 23.
Identify the incorrect of the following pair
A) Calciferol – Rickets
B) Biotin — Anaemia
C) Ascorbic acid — Scurvy
D) Niacin — Pellagra
Answer:
B) Biotin — Anaemia

Question 24.
“Plants restore to the air whatever breathing animals and burning candles remove” this was hypothesized by …….. [ ]
A) Lavoisier
B) Von Helmont
C) Joseph Priestly
D) Jan Ingenhousz
Answer:
C) Joseph Priestly

Question 25.
In plants exchange of gases takes place through …….
A) Stomata
B) Loose tissue on stem
C) Loose tissue on root
D) All the above
Answer:
D) All the above

Question 26.
A student conducted an experiment with alternate apparatus like cycletube, ball, vaseline. He applied vaseline inside tube and kept ball biside tube and pushes forward. What phenomenon he is going to show us?
A) Digestion
B) Excretion
C) Peristalsis
D) Egestion
Answer:
C) Peristalsis

Question 27.
The scientist who found that oxygen was released from hydrilla plant in bright sunlight is ……
A Engelman
B) Jan lngenhousz
C) Von Helmont
D) Van Sachs
Answer:
B) Jan lngenhousz

Question 28.
Fill the following flow chart with correct organs A & B. [ ]

A) Pyloric stomach, Pancreas
B) Large intestine, Oesophagus
C) Cardiac stomach, Pancreas
D) Large Intestine, Pancreas
Answer:
D) Large Intestine, Pancreas

Question 29.
Photosynthesis occurs in this part of the plant.
A) Chloroplasts
B) Mitochondria
C) Cytoplasm
D) Ribosomes
Answer:
A) Chloroplasts

Question 30.
What is use of KOH solution in Mohl’s half leaf experiment?
A) Absorbs CO₂
B) Absorbs oxygen
C) Supplies carbon dioxide
D) Releases CO₂
Answer:
A) Absorbs CO₂

Question 31.
Green coloured pigment present in leaves is called …….
A) xanthophyll
B) chlorophyll
C) carotene
D) phycobilin
Answer:
B) chlorophyll

Question 32.
The organelles containing chloraphyll in plant cells are ….
A) Golgi apparatus
B) Mitochondria
C) Chloroplast
D) Vacuole
Answer:
C) Chioroplast

Question 33.
A person suffering from improper formation of bones, knockness, swollen wrists and delayed dentition. What might be the reason?
A) Deficiency of vitamin ‘E’
B) Deficiency of vitamin ‘D’
C) Deficiency of vitamin ‘K’
D) Deficiency of vitamin ‘A’
Answer:
B) Deficiency of vitamin ‘D’

Question 34.
Find out wrong pair. [ ]
A) Saliva-Ptyaline
B) Pancreatic juice – Amylase
C) Gastric juice – Lipase
D) Intestinal juice – Peptidose
Answer:
C) Gastric juice – Lipase

Question 35.
Splitting of water molecule during photosynthesis is known as …. [ ]
A) Emulsification
B) Photolysis
C) Electrolysis
D) Hydrolysis
Answer:
B) Photolysis

Question 36.
What do you call particles of light rays which carry energy? [  ]
A) Photons
B) Protons
C) Neutrons
D) Electrons
Answer:
A) Photons

Question 37.
These are the assimilatory powers formed at the end of light reaction. [   ]
A) O₂, ATP
B) ATP, NADPH
C) O₂ NADPH
D) O₂, ATP, NADPH
Answer:
B) ATP, NADPH

Question 38.
Time gap between light reaction and dark reaction is  [ ]
A) Less than even one thousand of a second
B) More than one thousand of a second
C) Less than even one thousand of a minute
D) More than one thousand of a minute
Answer:
A) Less than even one thousand of a second

Question 39.
Which of the following undergoes reduction in dark phase?  [ ]
A) Nitrogen
B) Oxygen
C) CO₂
D) Hydrogen
Answer:

Question 40.
Photosynthesis process is determined on the production of carbohydrates but not on the production of glucose.
Reason is [  ]
A) Carbohydrates are an intermediary product in photosynthesis
B) Glucose which is formed in photosynthesis immediately converted into carbohydrates
C) Carbohydrates dissolve in water
D) Glucose is not tested
Answer:
B) Glucose which is formed in photosynthesis immediately converted into carbohydrates

Question 41.
The end product of dark reaction is [  ]
A) PGA
B) C₆H₁₂O₆
C) CO₂
D) Ribulose biphosphate
Answer:
B) C₆H₁₂O₆

Question 42.
In which process the low energy substances are converted to high energy compounds?  [  ]
A) Respiration
B) Photosynthesis
C) Fermentation
D) Kreb’s cycle
Answer:
B) Photosynthesis

Question 43.
Identify the parasitic plant. [  ]
A) Cuscuta
B) Cucumis
C) Hibiscus
D) Helianthus
Answer:
A) Cuscuta

Question 44.
Identify the organisms that break down the food materials outside the body and then absorb it.
A) Bread moulds
B) Yeast
C) Mushrooms
D) All
Answer:
D) All

Question 45.
Amoeba takes in food through ……
A) Nephridia
B) Cytostome
C) Pseudopodia
D) All the above
Answer:
C) Pseudopodia

Question 46.
What is the reason to keep a plant in dark for 48 hrs to know photosynthetic experiment in plants?
A) To remove green substance from leaves
B) To remove carbohydrates
C) To prove no photosynthetic process takes place
D) To know there is no carbohydrates in the leaves
Answer:
B) To remove carbohydrates

Question 47.
Saliva contains an enzyme called ……………
A) Amylase
B) Pepsin
C) Trypsin
D) Lipase
Answer:
A) Amylase

Question 48.
Proteins in the food are digested by
A) Pepsin
B) Trypsin
C) lipase
D) Pepsin, Trypsin
Answer:
D) Pepsin, Trypsin

Question 49.
Complete digestion of carbohydrates, proteins and fats occurs in ……………
A) Stomach
B) Small intestine
C) Large intestine
D) Buccal cavity
Answer:
B) Small intestine

Question 50.
Fats are emulsified by …….
A) bile juice
B) pancreatic juice
C) intestinal juice
D) all the above
Answer:
A) bile juice

Question 51.
The digestive juice which has no enzymes …….. [   ]
A) pancreatic juice
B) bile juice
C) intestinal juice
D) all the above
Answer:
B) bile juice

Question 52.
Pancreatic juice contains these enzymes. [   ]
A) Trypsin, Chymotrypsin
B) Lipase, Amylase
C) Trypsin, Lipase
D) Both A and B
Answer:
D) Both A and B

Question 53.
Chyme is ……… [   ]
A) partially digested food
B) an undigested food
C) absorbed food
D) solid food
Answer:
A) partially digested food

Question 54.
In which part of the alimentary canal digested food is absorbed? [   ]
A) Stomach
B) Mouth
C) Large intestine
D) Small Intestine
Answer:
D) Small Intestine

Question 55.
The longest part of alimentary canal is ……………….
A) Small intestine
B) Large intestine
C) Oesophagus
D) Stomach
Answer:
B) Large intestine

Question 56.
Most of the water present in the undigested food is absorbed in …………… [   ]
A) stomach
B) large intestine
C) small intestine
D) mouth
Answer:
B) large intestine

Question 57.
We feel bilious or liverish …….. [ ]
A) when we eat rich meals several days
B) when we eat malnutrition food for several days
C) when we eat fat containing food for few days
D) when we do not eat anything
Answer:
A) when we eat rich meals several days

Question 58.
We can avoid indigestion by …. [ ]
A) having simple well-balanced diet
B) eating food in a leisurely manner
C) thoroughly masticating food and taking violent exercise after eating food
D) all the above
Answer:
D) all the above

Question 59.
The characters of one of the protein deficiency diseases are accumulation of water in inter cellular spaces, dry skin, motion [ ]
A) Kwashiorkor
B) Marasmus
C) Pellagra
D) Obesity
Answer:
A) Kwashiorkor

Question 60.
The reasons for malnutrition in our country …….. [ ]
A) Poor health, will – full starvation
B) Lack of awareness of nutritional habits
C) Socio economic factors.
D) All the above
Answer:
D) All the above

Question 61.
This disease is due to deficiency of proteins and calories. [ ]
A) Kwashiorkor
B) Marasmus
C) Obesity
D) Pellagra
Answer:
B) Marasmus

Question 62.
Deficiency of thiamine causes [ ]
A) Glossitis
B) Scurvy
C) Anaemia
D) Beriberi
Answer:
D) Beriberi

Question 63.
Glossltis is the deficiency disease due to vitamin …………. [   ]
A) Riboflavin
B) Niacin
C) Pyridoxine
D) Cyanocobalamine
Answer:
A) Riboflavin

Question 64.
The vitamin which helps in healing of wounds and fracture of bones is …………. [   ]
A) K
B) C
C) D
D) A
Answer:
B) C

Question 65.
The vitamin required for coagulation of blood is ………….
A) B6
B) K
C) E
D) C
Answer:
B) K

Question 66.
The vitamin required for the synthesis of nucleic acid is ……. [   ]
A) Tocoferol
B) Folie acid
C) Cyanocobalamine
D) Riboflavin
Answer:
B) Folie acid

Question 67.
This vitamin is known as Antisterility vitamin
A) A
B) B₁₂
C) K
D) E
Answer:
D) E

Question 68.
Pernicious Anaemia occurs due to the deficiency of …….. [ ]
A) Vitamin B₆
B) Vitamin B₁₂
C) Vitamin B₃
D) Vitamin B₂
Answer:
B) Vitamin B₁₂

Question 69.
Fat-soluble vitamins are …….. [ ]
A) Vitamin A
B) Vitamin B and C
C) Vitamin A, D, E and K
D) Vitamin A, B and C
Answer:
C) Vitamin A, D, E and K

Question 70.
Need of green chlorophyll-pigmented molecules in leaves because [ ]
A) Break down of water molecule into hydrogen and oxygen
B) To release green light
C) To trap solar energy
D) None
Answer:
C) To trap solar energy

Question 71.
What chemical is used to know the presence of carbohydrates in leaves?
A) Methylated spirit
B) Iodine
C) Methylated spirit, Iodine
D) None
Answer:
B) Iodine

Question 72.
The process of digestion of food in human beings in ……. [ ]
A) mouth
B) oesophagus
C) stomach
D) small intestine
Answer:
A) mouth

Question 73.
The correct order of steps occuring in nutrition in animals is: [  ]
A) Ingestion → Absorption → Digestion → Assimilation → Egestion
B) Ingestion → Digestion → Assimilation → Absorption → Egestion
C) Ingestion → Digestion → Absorption → Assimilation → Egestion
D) Ingestion → Assimilation → Digestion → Absorption → Egestion
Answer:
C) Ingestion → Digestion → Absorption → Assimilation → Egestion

Question 74.
Where are proteins first digested in the alimentary canal?  [   ]
A) Mouth
B) Oesophagus
C) Stomach
D) Small Intestine
Answer:
C) Stomach

Question 75.
The first enzyme to mix with food in the digestive system is …….. [ ]
A) Pepsin
B) Amylase
C) Lipase
D) Trypsin
Answer:
B) Amylase

Question 76.
The oxygen liberated during photo. synthesis by green plants comes from [   ]
A) Glucose
B) Water
C) CO₂
D) Chlorophyll
Answer:
B) Water

Question 77.
The opening and closing of the stomatal pores depends on ….. [   ]
A) Temperature
B) Minerals
C) Water in guard cells
D) Oxygen
Answer:
C) Water in guard cells

Question 78.
The first step in photosynthesis is ………..
A) Photolysis of water
B) Production of ATP, NADPH
C) Carbon dioxide reduction
D) Excitation of chlorophyll
Answer:
D) Excitation of chlorophyll

Question 79.
Water soluble vitamins are …………
A) A, D, K vitamins
B) B complex and C vitamins
C) Vitamins A, K and E
D) B complex vitamins
Answer:
B) B complex and C vitamins

Question 80.
The finger like projections villi, for absorbing digested food material are present in …………..
A) Large intestine
B) Small intestine
C) Stomach
D) All the above
Answer:
B) Small intestine

Question 81.
Hydrochloric acid is present in this digestive juice [   ]
A) Gastric juice
B) Intestinal juice
C) Pancreatic juice
D) Bile juice
Answer:
A) Gastric juice

Question 82.
This vitamin is synthesized by bacteria present in the intestine [   ]
A) Pantothenic acid
B) Nicotine acid
C) Cyanocobalamine
D) Pyridoxine
Answer:
C) Cyanocobalamine

Question 83.
The presence of starch in leaves will be indicated by this colour after iodine test [   ]
A) Blue black
B) Black blue
C) Green
D) Brown
Answer:
A) Blue black

Question 84.
Scientist who found that water was essential for the increase of plant mass [   ]
A) Von Sachs
B) Von Helmont
C) Jan Ingenhousz
D) Robert Hill
Answer:
B) Von Helmont

Question 85.
The name oxygen was coined by [   ]
A) Joseph Priestly
B) Engelman
C) Lavoisier
D) Daniel I. Arnon
Answer:
C) Lavoisier

Question 86.
Massive amounts of gaseous exchange occurs through the [   ]
A) Stomata
B) Intercellular spaces
C) Roots
D) Lenticels
Answer:
A) Stomata

Question 87.
Potassium hydroxide solution absorbs [   ]
A) nitrogen
B) carbon dioxide
C) oxygen
D) potassium
Answer:
B) carbon dioxide

Question 88.
Chlorophyll In an organelle called chloroplast was observed first time by [ ]
A) C.B. Van Neil
B) Jan lngenhousz
C) Engelman
D) Julius Von Sachs
Answer:
D) Julius Von Sachs

Question 89.
In photosynthesis finally, the glucose is converted to [   ]
A) Carbohydrate
B) Starch
C) Proteins
D) Fats
Answer:
B) Starch

Question 90.
The light reactions of photosynthesis takes place in …… [ ]
A) Grana
B) Strorna
C) Vacuole
D) Golgi complex
Answer:
A) Grana

Question 91.
Site of dark reaction of photosynthesis [  ]
A) Stroma lamellae
B) Cytoplasm
C) Mitochondria
D) Stroma
Answer:
D) Stroma

Question 92.
Organisms which breakdown the food materials outside the body and absorb them are [   ]
A) Parasites
B) Saprophytes
C) Symbiotes
D) Holozoits
Answer:
B) Saprophytes

Question 93.
Why we use KOH in a bottle in the experiment to know CO₂ is necessary for photosynthesis?
A) To absorb chlorophyll in leaves
B) To absorb air in bottle
C) To absorb CO₂ in bottle
D) To absorb water vapour in the bottle.
Answer:
C) To absorb CO₂ in bottle

Question 94.
Cuscuta plant absorbs nutrient through [  ]
A) Rhizoids
B) Haustoria
C) Corolloid roots
D) Pneumatophores
Answer:
B) Haustoria

Question 95.
The process of taking food in the body is [  ]
A) Defecation
B) Absorption
C) Ingestion
D) Digestion
Answer:
C) Ingestion

Question 96.
The pair of salivary glands present below the tongue [  ]
A) Sublingual
B) Parotid
C) Submaxillary
D) All the above
Answer:
A) Sublingual

Question 97.
This enzyme breaks down complex carbohydrates to simple ones  [  ]
A) Trypsin
B) Amylase
C) Lipase
D) Pepsin
Answer:
B) Amylase

Question 98.
Due to the perista Itic movements food moves in this part of digestive system.  [  ]
A) Mouth
B) Large intestine
C) Oesophagus
D) All the above
Answer:
C) Oesophagus

Question 99.
Pepsin breaks down proteins into smaller molecules in this part of alimentary canal
A) Small intestine
B) Mouth
C) Oesophagus
D) Stomach
Answer:
D) Stomach

Question 100.
These muscles present at the end of stomach regulate the opening of the passage so that only small amount of food may be released at a time.
A) Sphincter muscle
B) Circular muscle
C) Longitudinal muscle
D) Round muscle
Answer:
A) Sphincter muscle

Question 101.
Bile juice and pancreatic juices are from liver and pancreas release into [ ]
A) Stomach
B) Small intestine
C) Large intestine
D) Oesophagus
Answer:
B) Small intestine

Question 102.
Complete digestion of carbohydrates proteins and fats takes place [  ]
A) Stomach
B) Large intestine
C) Small intestine
D) All the above
Answer:
C) Small intestine

Question 103.
Duodenum of small Intestine receives digestive juices from [  ]
A) Liver
B) Pancreas
C) liver and pancreas
D) liver, pancreas and stomach
Answer:
C) liver and pancreas

Question 104.
The network of villi consists off  [  ]
A) Only blood vessels
B) Only lymph vessels
C) Both blood and lymph vessels
D) None
Answer:
C) Both blood and lymph vessels

Question 105.
Over eating is the main reason for vomiting because of the presence of high amount of this in the food. [ ]
A) Carbohydrate
B) Protein
C) Fat
D) Minerais
Answer:
C) Fat

Question 106.
Site of light reaction [   ]
A) Grana of chloroplasts
B) Stroma of chloroplasts
C) Mitochoncirja
D) Golgi complex
Answer:
A) Grana of chloroplasts

Question 107.
We can avoid this by having plenty of roughage in the diet [   ]
A) Defecation
B) Constipation
C) Absorption
D) transportation
Answer:
B) Constipation

Question 108.
Reason for to call Hill reaction as light reaction [ ]
A) Break down of water molecule is by light
B) Break down of chlorophyll atom by light
C) Conversion of hydrogen ions of water to hydroxyl ions
D) Water is formed by combination of hydrogen and hydroxyl ions
Answer:
A) Break down of water molecule is by light

Question 109.
Eating of food that does not have one or more than one nutrients in required amounts is known as [ ]
A) Nutrition
B) Malnutrition
C) Marasmus
D) Kwashiorkor
Answer:
B) Malnutrition

Question 110.
Kwashlorkor disease occurs due to the deficiency of [ ]
A) Proteins
B) Calories
C) Both proteins and Calories
D) Fats
Answer:
A) Proteins

Question 111.
Obesity is due to eating food [ ]
A) Low quantities of nutrients
B) High quantities of nutrients
C) Over eating and excess of energy intake
D) Less eating with low energy intake
Answer:
C) Over eating and excess of energy intake

Question 112.
The gastric juice consists of [ ]
A) Hydrochloric acid
B) Pepsin
C) Mucus
D) AH the above
Answer:
D) AH the above

Question 113.
Factors required for photosynthesis are [ ]
A) Carbon dioxide, oxygen, water
B) Chlorophyll, sunlight, water
C) Chlorophyll, carbon dioxide, water, sunlight
D) Carbon dioxide, water, sunlight, oxygen
Answer:
C) Chlorophyll, carbon dioxide, water, sunlight

Question 114.
Leaves appear green because [ ]
A) They reflect green light
B) They absorb green light
C) They refract green light
D) All the above
Answer:
A) They reflect green light

Question 115.
These ions produced in photolysis forms water and oxygen [ ]
A) OH^– ions
B) OH ions
C) Chons
D) H ions
Answer:
A) OH^– ions

Question 116.
The role of acid in stomach is [ ]
A) It kills harmful germs
B) HCl creates an acidic medium
C) Both A and B
D) None
Answer:
C) Both A and B

Question 117.
The substance which is not having relation with autotrophic nutrition [ ]
A) ATP
B) NADP
C) NADPH
D) ATGC
Answer:
D) ATGC

Question 118.
Chlorophyll pigment contains one atom of [ ]
A) Iron
B) Magnesium
C) Potassium
D) Calcium
Answer:
B) Magnesium

Question 119.
Which part of the Dodder plant (Cuscuta) forms haustoria? [ ]
A) Root
B) Stem
C) Leaf
D) All the above
Answer:
B) Stem

Question 120.
Carbohydrate digestion do not occur in this part of alimentary canal [ ]
A) Mouth
B) Oesophagus
C) Stomach
D) Small intestine
Answer:
B) Oesophagus

Question 121.
The end product of photosynthesis is ………….
A) Glucose
B) Oxygen
C) Water
D) All the above
Answer:
D) All the above

Question 122.
Reason for cuscuta plant to perform parasitic nutrition [ ]
A) Absence of chlorophyll in leaves
B) Absence of roots
C) Stem is weak
D) Less absorption of water
Answer:
A) Absence of chlorophyll in leaves

Question 123.
Nutrients present in balanced diet are ………..
A) Carbohydrates, Proteins
B) Fats, Vitamins
C) Mineral salts
D) All the above
Answer:
D) All the above

Question 124.
This vitamin is present only in animal foods [ ]
A) Calciferol
B) Tocoferol
C) Retinol
D) Phylloquinone
Answer:
A) Calciferol

Question 125.
One of the fat soluble vitamins Involved in coagulation of blood is …………..
A) VitaminK
B) Vitamin D
C) Vitamin B
D) Vitamin E
Answer:
A) VitaminK

Question 126.
Enzymes that act on proteins are [ ]
A) Trypsin, Chymotrypsin
B) Ptyalin, Amylase
C) Pepsin, Trypsin
D) Lipase, Sucrase
Answer:
C) Pepsin, Trypsin

Question 127.
Deficiency of biotin results in [ ]
A) Burning feet
B) Nerve disorders
C) Anaemia
D) Peliagra
Answer:
B) Nerve disorders

Question 128.
The chemical name of Vitamin 83 is [ ]
A) Thiamine
B) Riboflavin
C) Niacin
D) Pyridoxine
Answer:
C) Niacin

Question 129.
The causes for vomiting are [ ]
A) Over eating
B) Food containing high proportion of fat
C) When we eat something very indigestible or poisonous
D) All the above
Answer:
D) All the above

Question 130.
The process of digestion in humans is completed in [ ]
A) Stomach
B) Large intestine
C) Oesophagus
D) Small intestine
Answer:
D) Small intestine

Question 131.
Where are proteins first digested in the alimentary canal? [ ]
A) Mouth
B) Stomach
C) Oesophagus
D) Small intestine
Answer:
B) Stomach

Question 132.
The first enzyme to mix with the food in the digestive system is ….. [ ]
A) Amylase
B) Pepsin
C) Trypsin
D) Lipase
Answer:
A) Amylase

Question 133.
The internal energy (cellular energy) reserve in autotrophs is [ ]
A) Proteins
B) Fatty acids
C) Glycogen
D) Starch
Answer:
D) Starch

Question 134.
Cell organelle concerned in photo synthesis [ ]
A) Nucleus
B) Chloroplast
C) Ribosomes
D) Chromoplast
Answer:
B) Chloroplast

Question 135.
Process responsible for the oxygen equilibrium in the atmosphere
A) Nitrogen fixation
B) Transport
C) Photosynthesis
D) Protein synthesis
Answer:
C) Photosynthesis

Question 136.
Variegated leaf experiment helps to demonstrate the essentiality of …… for photosynthesis.
A) Light
B) Chlorophyll
C) Oxygen
D) Carbon dioxide
Answer:
B) Chlorophyll

Question 137.
Half leaf experiment is used to demonstrate the requirement of…… for photosynthesis.
A) Carbon dioxide
B) Oxygen
C) Sunlight
D) Water
Answer:
A) Carbon dioxide

Question 138.
In the half leaf experiment the part of leaf showed positive for starch test [ ]
A) Leaf part in the glass bottle
B) Exposed part of the glass bottle
C) Total leaf
D) Petiole of the leaf
Answer:
B) Exposed part of the glass bottle

Question 139.
Plants and animals “restore” air for each other. This was experimentally proved by [ ]
A) Lavoisier
B) Joseph Preistly
C) Engelmen
D) Robert Hill
Answer:
B) Joseph Preistly

Question 140.
Source of carbon for autotrophs [ ]
A) Carbon monoxide
B) Carbonates
C) Carbon dioxide
D) All the above
Answer:
C) Carbon dioxide

Question 141.
Source of carbon for heterotrophs [ ]
A) Organic molecule
B) Inorganic molecule
C) Atmosphere
D) Soil
Answer:
A) Organic molecule

Question 142.
Organisms which can trap solar energy for the synthesis of food materials [ ]
A) All plants
B) Animals
C) Green plants
D) All living organisms
Answer:
C) Green plants

Question 143.
In green plants the main light absorbing molecule is [ ]
A) Chlorophyll
B) Xanthophyll
C) Carotenoid
D) Phycobilin
Answer:
A) Chlorophyll

Question 144.
The most abundant plant pigment in the world [ ]
A) Chlorophyll-2
B) Chlorophyll-b
C) Xanthophylls
D) Carotenoid
Answer:
A) Chlorophyll-2

Question 145.
Photosynthesis occurs maximum in [ ]
A) Blue and Red light
B) Red and Green light
C) Green and Blue light
D) Only in Green light
Answer:
A) Blue and Red light

Question 146.
Emulsification in digestive system is due to the presence of [ ]
A) Saliva
B) Gastric juice
C) Peptic
D) Bile juice
Answer:
D) Bile juice

Question 147.
Reasons for formation of ulcers in stomach [   ]
A) Uneasy
B) Stress and strain
C) Bacteria
D) All
Answer:
D) Bile juice

Question 148.
Which of the following equation is the correct summary of photosynthesis?

Answer:
B.

Question 149.
Riboflavin (B) deficiency causes [  ]
A) Ben Ben
B) Glossitis
C) Pellagra
D) Anaemia
Answer:
B) Glossitis

Question 150.
Disease peliagra occurs due to the deficiency of vitamin [   ]
A) Pyridoxine (B₆)
B) Niacin (B₃)
C) Cyanocobalamine (B₁₂)
D) Folie acid
Answer:
B) Niacin (B₃)

Question 152.
Vitamin ‘C’ deficiency results in a disease called [    ]
A) Burning feet
B) Scurvy
C) Xeropthalmia
D) Pernicious
Answer:
B) Scurvy

Question 153.
Identify the Antisterility vitamin.
A) Vitamin K
B) Vitamin B
C) Vitamin E
D) Biotin
Answer:
C) Vitamin E

Question 154.
Deficiency of cyanocobalamine cause a disease called [   ]
A) Pernicious Anaemia
B) Anaemia
C) Peilagra
D) Glossitis
Answer:
A) Pernicious Anaemia

Question 155.
The action of bile can be termed as [   ]
A) Esterification
B) Hydrogenation
C) Oxidation
D) Emulsification
Answer:
D) Emulsification

Question 156.
Find out who am I.
I am a vitamin.
Healing of wounds, fracture of bones does not takes place in the absence of me.
lam in vegetables, citrus fruits, and in germinating seeds.
Who am I? [  ]
A) Retinol
B) Niacine
C) Folic acid
D) None of the above
Answer:
D) None of the above

Question 157.
The oxygen liberated during photosynthesis by green plants comes from: [  ]
A) water
B) carbon dioxide
C) chlorophyll
D) glucose
Answer:
A) water

Question 158.
When Rani injured her finger, it took a lot of time to coagulate the blood. Imagine the cause for it. [  ]
A) Deficiency of vitamin D
B) Deficiency of vitamin K
C) Rani has a lot of bad blood in her body
D) Rani has less blood
Answer:
B) Deficiency of vitamin K

Question 159.
Photosynthesis takes place in the chloroplast to produce sugars, starches and carbohydrates. If chloroplast Is absent, then [ ]
A) carbohydrates will not be prepared
B) the plant will die
C) the plant will grow healthy
D) all the above
Answer:
B) the plant will die

Question 160.
In plants, an exchange of gases takes place through the ……….
A) leaf veins
B) cepals
C) stomata
D) xylem
Answer:
C) stomata

Question 161.
Marasmus disease is due to the deficiency of ……………. [ ]
A) proteins
B) calories
C) options (A) and (B)
D) none of these
Answer:
C) options (A) and (B)

Question 162.
As per the advice of the doctor, a patient needs to be given glucose …………..
A) till the total recovery of the patient
B) till confirming that the patient is in no debility
C) till the patients sleeps
D) options (A) and (B)
Answer:
B) till confirming that the patient is in no debility

Question 163.
Observe the below statements.
i) Protein deficiency in diet leads to Kwashiorkor disease.
ii) Deficiency of only calories leads to Marasmus disease.
A) (i) anti (ii) are true
B) (i) true but (ii) false
C) (i) false but (ii) true
D) (i) and (ii) both false
Answer:
B) (i) true but (ii) false

Question 164.
This process doesn’t take place, if a plant is kept in dark room. [ ]
A) Respiration
B) Reproduction
C) Photosynthesis
D) Water transportation
Answer:
C) Photosynthesis

Question 165.
A person is not suffering from indigestion. This can be analysed as ……….
A) balanced diet is not taken
B) taking diet in hurry
C) thoroughly chewing the food
D) doing exercise after meal
Answer:
C) thoroughly chewing the food

Question 166.
The carbohydrate stored in plants is:
A) Glucose
B) Starch
C) Fructose
D) Sucrose
Answer:
B) Starch

Question 167.
The scientist who found that water is essential for the increase of plant mass [ ]
A) Pelletier
B) lngenhousz
C) Von Helmont
D) Caventou
Answer:
C) Von Helmont

Question 168.
Site of photosynthesis is: [ ]
A) Mitochondria
B) Cytoplasm
C) Nucleus
D) Chloroplast
Answer:
D) Chloroplast

Question 169.
Oxygen is released during this process
A) Photosynthesis
B) Photolysis
C) Respiration
D) None of the above
Answer:
B) Photolysis

Question 170.
The third layer of chloroplast is:
A) Inner membrane
B) Stroma
C) Grana
D) Epidermis
Answer:
C) Grana

Question 171.
The teeth we use to cut an apple are ………………
A) Incisors
B) Canines
C) Premolars
D) Molars
Answer:
A) Incisors

Question 172.
1) Cuscuta, lice, leeches [ ] a protozoan
2) Amoeba [  ] Saprophytes paramoecium
3) Fungi, yeast [  ] c) Parasites
Identify the correctly matched pair.  [  ]
A) 1) b, 2) a, 3) c
B) 1) a, 2) b, 3) c
C) 1) c, 2) a, 3) b
D) 1) c, 2) b, 3) a
Answer:
C) 1) c, 2) a, 3) b

Question 173.
Lean and weak, less appetite are the symptoms for the disease
A) Pernicious anaemia
B) Anaemia
C) Burning feet
D) Scurvy
Answer:
A) Pernicious anaemia

Question 174.
The 3 D-s – Diarrhoea, Dermatitis, Dementia are the symptoms of the disease:
A) Beri Beri
B) glossitis
C) Pellagra
D) Anaemia
Answer:
C) Pellagra

Question 175.
The chemical name of vitamin – C is [   ]
A) Thiamine
B) Calciferol
C) Ascorbic acid
D) Tocoferol
Answer:
C) Ascorbic acid

Question 176.
The first part of small intestine is [   ]
A) Duodenum
B) Jejunum
C) Ileum
D) Rectum
Answer:
A) Duodenum

Question 177.
The chemical name of the vitamin which leads to deficiency disease,fertility disorders is …………
A) Calciferol
B) Tocoferol
C) Phylloquinone
D) Retinol
Answer:
B) Tocoferol

Question 178.
The enzyme secreted by the stomach is [ ]
A) Trypsin
B) Pepsin
C) Lipase
D) Amylase
Answer:
B) Pepsin

Question 179.
The name of the salivary enzyme secreted by salivary glands is [ ]
A) Amylase
B) Sucrose
C) Lactose
D) Ptyalin
Answer:
D) Ptyalin

Question 180.
The light harvesting pigment present in green plants contains one atom of [ ]
A) iron
B) magnesium
C) calcium
D) none of the above
Answer:
B) magnesium

Question 181.
The scientist who breaks up plant, cells to isolate chloroplast is [ ]
A) Daniel I, Arnon
B) Robert Hill
C) Melvin Calvin
D) Jan Ingenhousz
Answer:
A) Daniel I, Arnon

Question 182.
The plant which is used to observe oxygen released in bright sunlight is ………….
A) Valisneria
B) Hydrilla
C) Rose
D) China Rose
Answer:
B) Hydrilla

Question 183.
The nutrition in which an organism takes the complex organic food by the process of Ingestion, digests and absorbs into the body cells is called …………
A) saprophytic nutrition
B) parasitic nutrition
C) holozoic nutrition
D) autotrophic nutrition
Answer:
C) holozoic nutrition

Question 184.
Identify ‘X’.

A) Chyme
B) Bolus
C) Digestive enzyme
D) AH the above
Answer:
B) Bolus

Question 185.
The vitamin required for proper vision [ ]
A) Vitamin — B₁
B) Vitamin — B₂
C) Vitamin — A
D) Vitamin — C
Answer:
C) Vitamin — A

Question 186.
Observe the following statements:
a) Autotrophs are the organisms capable of using light.
b) Priestly revealed the essential role of air in the growth of green plants.
A) a, b false
B) a correct, b false
C) a false, b correct
D) both a, b correct
Answer:
D) both a, b correct

Question 187.
Identify the mismatched pairs :[  ]
1) Vitamin – A   a) Pellagra
2) Vitamin – C   b) Night blindness
3) Vitamin – D   c) Rickets
A) 2,3
B) 1,2
C) 1,2,3
D) 1,3
Answer:
B) 1,2

Question 188.
Mitochondria : Power house of the cell; ATP:.. ? [  ]
A) Assimilatory energy
B) Energy currency
C) Cell currency
D) Emergency currency
Answer:
B) Energy currency

Question 189.
Green plants : roots ; Cuscuta : …………….. ?
A) Rhizopodia
B) Lobopodia
C) Pseudopodia
D) Haustoria
Answer:
D) Haustoria

Question 190.
A student prepared a model of elementary canal like the following.

The labelled part ‘X’ indicates the following:
A) Small intestine
B) Pyloric sphincter
C) Anus
D) Large instestine
Answer:
D) Large instestine

Question 191.
NADP stands for …………..
A) Nicotine
B) Phosphate
C) Nicotinamicle Adenine Double Phosphate
D) Nicotinamide Adenine Di Phosphate
Answer:
D) Nicotinamide Adenine Di Phosphate

Question 192.
Which biological process is going on in the given organism? [ ]

A) Excretion
B) Nutrition
C) Respiration
D) Circulation
Answer:
B) Nutrition

Question 193.
Arrange the flow, chart in the correct order.

A) 1, 2, 3, 4, 5
B) 1, 3. 2, 4. 5
C) 1, 2, 3,5,4
D) 1, 3, 2, 5, 4
Answer:
D) 1, 3, 2, 5, 4

Question 194.

The children shown in the above figure are suffering from a disease. Can you name it?
A) obesity
B) Rickets
C) Pellagra
D) Kwashiorkor
Answer:
D) Kwashiorkor

Question 195.
Arrange the flow chart in the correct order. [ ]

A) 5, 3, 4, 1,2
B) 5, 1,2,3,4
C) 5. 2, 1, 3, 4
D) 5, 2, 1, 4, 3
Answer:
D) 5, 2, 1, 4, 3

Question 196.

The boy shown iii the above figure is suffering from malnutrition. Can is you name the disease that he suffering from? [ ]
A) Kwashiorkor
B) Obesity
C) Marasmus
D) Pellagra
Answer:
C) Marasmus

Question 197.

This is one of the symptoms of the following disease ………… [     ]
A) Kwashiorkor
B) Marasmus
C) Obesity
D) Pellagra
Answer:
D) Pellagra

Question 198.
This is the best example for the following type of nutrition ……. [  ]

A) Autotrophic nutrition
B) Heterotrophic nutrition
C) Saprophytic nutrition
D) Parasitic nutrition
Answer:
D) Parasitic nutrition

Question 199.
Match the following.

A) 1-b. 2-c, 3-a
B) 1-c, 2-b. 3-a
C) 1-a, 2-h, 3-c
D) 1-c, 2-a, 3-b
Answer:
D) 1-c, 2-a, 3-b

Question 200.
This experiment is done to prove the importance of  ………… [   ]

A) Sunlight
B) CO₂
C) O₂
D) Water
Answer:
A) Sunlight

Question 201.
In this is experiment, ‘X’ indicates the following ………… [   ]

A) Hydrogen
B) Oxygen
C) CO₂
D) Nitrogen
Answer:
B) Oxygen

Question 202.
The following scientist conducted this experiment. [ ]

A) Calvin
B) Mohi
C) lngenhousz
D) Priestly
Answer:
D) Priestly

Question 203.
Match the following.
List-A —- List-B
1) Hydrilla experiment  [ ] — a) Pelletier and Caventou
2) Bell jar experiment [   ] — b) Priestly
3) Discovery of Chlorophyll [    ] — c) Jngeiihousz
A) 1-c, 2-a, 3-b
B) 1-b, 2-c, 3-a
C) 1-a, 2-b, 3-c
D) 1-c, 2-b. 3-a
Answer:
D) 1-c, 2-b. 3-a

Question 204.
Find out the missing thing from the table. [   ]

Plant part	Function
1. Stomata	Gaseous exchange
2. Chlorophyll	?

A) Trapping of CO₂
B) Absorption of water
C) Synthesis of food
D) Formation of O₂
Answer:
C) Synthesis of food

Question 205.
Complete this flow chart.  [  ]

A) ATP
B) ADP
C) RUBP
D) ATP, NADPH
Answer:
D) ATP, NADPH

Question 206.
Fill this flow chart.  [   ]

A) Cyanocobalamine
B) Phylloquinone
C) Thiamine
D) Biotin
Answer:
B) Phylloquinone

Question 207.
Complete this flow chart [   ]

A) Rickets
B) Scurvy
C) Night blindness
D) Pellagra
Answer:
B) Scurvy

Question 208.
Complete this flow chart [   ]

A) Cyanocobalamine
B) Thiamine
C) Calciferol
D) Folk acid
Answer:
C) Calciferol

Question 209.
Match the following. [   ]
List – A —- List – B
1) Vitamin – B₁ [    ] — a) Anaemia
2) Vitamin – B [    ] — b) Pernicious Anaemia
3) Vitamin – B₁₂ [   ]  — c) Ben-ben
A) 1-b, 2-c, 3-a
B) 1-a. 2-b, 3-c
C) 1-a, 2-c, 3-b
D) 1-c, 2-a, 3-b
Answer:
D) 1-c, 2-a, 3-b

Question 210.
Complete this table.

Enzyme	Location of release
1) Pepsin 2) Trypsin	Stomach ?

A) Oesophagus
B) Buccal Cavity
C) Duodenum
D) Stomach
Answer:
C) Duodenum

Question 211.
Complete this table.

Type of food	End products
1) Carbohydrates 2) Proteins	Glucose ?

A) Glycerol
B) Fat globules
C) Starch
D) Amino acids
Answer:
D) Amino acids

Question 212.
Complete this table. [ ]

Enzyme	Organ of release
1. Ptyalin 2. AmyLase	Salivary glands ?

A) Walls of stomach
B) Walls of
C) Liver
D) Pancreas intestine
Answer:
D) Pancreas intestine

Question 213.

What is the life process going on in that? [  ]
A) Digestion
B) Excretion
C) Respiration
D) Nutrition
Answer:
D) Nutrition

Question 214.
The aim of the above experiment is to prove the importance of in photosynthesis. [   ]

A) O
B) Sunlight
C) CO₂
D) Water
Answer:
C) CO₂

Question 215.

This test is conducted to test the presence of  [  ]
A) Proteins
B) Fat
C) Chlorophyll
D) Starch
Answer:
D) Starch

Question 216.

In the above model of digestive system ‘x’ denotes ….. [   ]
A) Liver
B) Stomach
C) Small intestine
D) Pancreas
Answer:
D) Pancreas

Question 217.

This is a sketch of leaf partially covered with black paper for black paper experiment. Which part turn blue-black after starch test?
A) I only
B) II only
C) I and III
D) II and III
Answer:
C) I and III

Question 218.
Which is the correct leaf for the experiment to prove CO₂ is essential for photosynthesis?  [   ]
A) 1
B) 2
C) 3
D) 4
Answer:
B) 2

Question 219.
What is the enzyme involved in the following reaction?  [  ]
Fat \(\text { globules } \frac{?}{\text { Duodenum }} \text { Fatty }\)+Glycerol
A) Amylase
B) Trypsin
C) Peptidases
D) Lipase
Answer:
D) Lipase

Question 220.
Name the digestive juice involved in the following reaction. [ ]
\(\text { Fats } \underset{\text { Duodenum }}{\longrightarrow} \text { Fat globules }\)
A) Lipase
B) Amylase
C) Trypsin
D) Bile juice
Answer:
D) Bile juice

Question 221.
Match the following.
List-A —- List-B
1) Bolus [ ] a) Stomach
2) Chile [ ] b) Intestine
3) Chyme [ ] c) mouth
A) 1-a, 2-c, 3-b
B) 1-c, 2-b, 3-a
C) 1-a, 2-b, 3-c
D) 1-c, 2-a, 3-b
Answer:
D) 1-c, 2-a, 3-b