TS 10th Class Biology Bits 7th Lesson Coordination in Life Processes

These TS 10th Class Biology Bits with Answers 7th Lesson Coordination in Life Processes will help students to enhance their time management skills.

TS 10th Class Biology Bits 7th Lesson Coordination in Life Processes

Choose the correct answer.

Question 1.
Human dental formula is \(\frac{2}{2}, \frac{1}{1}, \frac{2}{2}, \frac{3}{3}\) in this formula, \(\frac{1}{1}\) denotes
A) incisors
B) canines
C) premolars
D) molars
Answer:
B) canines

Question 2.
Name the arrow part of the diagram.

A) Oesophagus
B) Stomach
C) Duodenum
D) Appendix
Answer:
C) Duodenum

Question 3.
Example for the reflexes in stomach …………….
A) Peristaltic movement
B) Assimilation
C) Vomiting
D) Digestion
Answer:
A) Peristaltic movement

Question 4.
Name the valve indicated in the picture.

A) Bicuspid valve
B) Pyloric valve
C) Villi
D) Tricuspid valve
Answer:
B) Pyloric valve

Question 5.
The hormone released during hunger is [  ]
A) Adrenalin
B) Thyroxin
C) Leptin
D) Ghrelin
Answer:
D) Ghrelin

Question 6.
Which of the following is not a correct pali?
A) Bile – Liver
B) Trvpsin – Pañcreas
C) Pepsin – Small intestine
D) Ptyalin – Salivary glands
Answer:
C) Pepsin – Small intestine

Question 7.
Hormone released by Pancreas.
A) Vasopressine
B) Adrenalin
C) Insulin
D) Progesterone
Answer:
C) Insulin

Question 8.
When we feel our stomach is full and there is no need of food any illore, the hormone secreted is
A) Secretin
B) Glucagon
C) Leptin
D) Ghrelin
Answer:
C) Leptin

Question 9.
Identify the following figure.

A) Artery
B) Motor neuron
C) Alveoli
D) Villus of small intestine
Answer:
D) Villus of small intestine

Question 10.
Sensation of hunger and motivation to consume food occurs due to [    ]
A) Increase in ghrelin levels
B) Decrease in ghrelin levels
C) Increase in leptin levels
D) Increase in secretin levels
Answer:
A) Increase in ghrelin levels

Question 11.
We can taste the food quickly which is in the form of [    ]
A)Solid
B) Liquid
C) Semi solid
D) Gas
Answer:
B) Liquid

Question 12.
Taste buds are absent in this papillae [ ]
A) Villate papillae
B) Pholiate papillLie
C) Filiform papillae
D) Fungiform papillae
Answer:
C) Filiform papillae

Question 13.
Mouth starts watering just by hearing tile name like [ ]
A) Tamarind
B) Lime
C) Mango
D) Alt
Answer:
D) Alt

Question 14.
Russian scientist Pavlov conducted experiments on [ ]
A) Conditioned reflex
B) Unconditioned reflex
C) Insight learning
D) Instincts
Answer:
A) Conditioned reflex

Question 15.
The inner lining of stomach is protected by one of the following from the harmful effect of hydrochloric acid. This is [ ]
A) Saliva
B) Pepsin
C) Peristalsis
D) Mucus
Answer:
D) Mucus

Question 16.
Which of the following component of our food is digested by an enzyme which is present in saliva as well as in pancreatic juice? [ ]
A) fats
B) carbohydrates
C) proteins
D) minerals
Answer:
B) carbohydrates

Question 17.
Identify the teeth with sharp and pointed edges. [ ]
A) incisors
B) canines
C) premolars
D) molars
Answer:
B) canines

Question 18.
Identify the dental formula.

Answer:
B)

Question 19.
The nerve that controls the movement of muscles in the ………….
A) First cranial nerve
B) Third cranial nerve
C) Fourth cranial nerve
D) Fifth cranial nerve
Answer:
D) Fifth cranial nerve

Question 20.
As a result of chewing food forms into a slurry mass called [ ]
A) Bolus
B) Chyme
C) Cud
D) All the above
Answer:
A) Bolus

Question 21.
The mechanism of swallowing is under the control of [ ]
A) Cerebrum
B) Diencephalon
C) Mid-brain
D) Brain stem
Answer:
D) Brain stem

Question 22.
If the pH value of a substance is beyond 7, then it is
A) Alkaline
B) Acidic
C) Neutral
D) All
Answer:
A) Alkaline

Question 23.
If the salivary amylase is to act, the medium should be [ ]
A) Acidic
B) Alkaline
C) Neutral
D) Both acidic and alkaline
Answer:
B) Alkaline

Question 24.
Saliva secreted by us per day is [ ]
A) 1 — 1.25 litres
B) 1 — 1.5 litres
C) 2 — 2.25 litres
D) 1.75 litres
Answer:
B) 1 — 1.5 litres

Question 25.
Peristalsis is occurs in this part of digestive system [ ]
A) Oesophagus
B) Stomach
C) Small intestine
D) All
Answer:
D) All

Question 26.
Digestive juice secreted by the walls of stomach contains an acid called … [ ]
A) Hydrochloric acid
B) Nitric acid
C) Sulphuric acid
D) Amino acid
Answer:
A) Hydrochloric acid

Question 27.
Reverse peristalsis occurs in ruminating animals like [ ]
A) Cow
B) Buffalo
C) Goats, sheep
D) All
Answer:
D) All

Question 28.
The nature of food when it enters the intestine [ ]
A) Acidic
B) Alkaline
C) Neutral
D) All
Answer:
A) Acidic

Question 29.
Absorption of nutrients by villi in the small intestine is a very [   ]
A) elective process
B) selective process
C) both selective & elective process
D) None
Answer:
B) selective process

Question 30.
2% of our immune systems is aimed at to expel and kill foreign invaders [ ]
A) Gut or Alimentary canal
B) Blood
C) Kidneys
D) Lungs
Answer:
A) Gut or Alimentary canal

Question 31.
Neurons in the enteric nervous system enable us to [ ]
A) Stimulating and coordinating the breaking down of food
B) Absorbing nutrients
C) Expelling wastes
D) All the above
Answer:
D) All the above

Question 32.
Water and nutrients are absorbed in [ ]
A) Stomach
B) Small intestine
C) Large intestine
D) All the above
Answer:
C) Large intestine

Question 33.
This process is required for oxidation of food and release of energy [ ]
A) Excretion
B) Circulation
C) Respiration
D) None of the above
Answer:
C) Respiration

Question 34.
Large protein molecules are broken down in first in this part of digestive system. [ ]
A) Mouth
B) Stomach
C) Oesophagus
D) Small intestine
Answer:
B) Stomach

Question 35.
The strong acid which is secreted into the stomach along with gastric juice [ ]
A) Hydrochloric acid
B) Sulphuric acid
C) Nitric acid
D) Phosphoric acid
Answer:
A) Hydrochloric acid

Question 36.
Olfactory receptors present in this part triggers signals to brain about smell [ ]
A) Tongue
B) Nose
C) Ear
D) All
Answer:
B) Nose

Question 37.
pH of saliva is ……… in nature. [ ]
A) acidic
B) neutral
C) alkaline
D) none of the above
Answer:
C) alkaline

Question 38.
Fluctuations of this hormone levels results in sensation of hunger and motivation of consuming food [ ]
A) Leptin
B) Chrelin
C) Thyroxine
D) Paratharmone
Answer:
B) Chrelin

Question 39.
The hormone that is responsible for suppression of hunger [ ]
A) Leptin
B) Ghrelin
C) Adrenalin
D) Cortisol
Answer:
A) Leptin

Question 40.
The muscles that help in chewing food in the mouth are [ ]
A) Circular muscles
B) Surface muscles
C) Longitudinal muscles
D) Transverse muscles
Answer:
A) Circular muscles

Question 41.
During mastication these muscles moves the jaw up, down, forward, backward [ ]
A) Circular
B) Surface
C) Longitudinal
D) Transverse
Answer:
B) Surface

Question 42.
The muscles of the lower jaw are controlled by [ ]
A) Third cranial nerve
B) Fourth cranial nerve
C) Fifth cranial nerve
D) Sixth cranial nerve
Answer:
C) Fifth cranial nerve

Question 43.
Saliva is released from salivary glands under the action of this nervous system
A) Central nervous system
B) Peripheral nervous system
C) Autonomous nervous system
D) Sympathetic nervous system
Answer:
C) Autonomous nervous system

Question 44.
Swallowing of food from mouth into the oesophagus is coordinated by the swallowing centres in the [ ]
A) Medulla oblongata and Cerebellum
B) Medulla oblongata and Brain stem
C) Cerebrum and Cerebellum
D) Cerebrum and Brain stem
Answer:
B) Medulla oblongata and Brain stem

Question 45.
The nerve which plays an important role in sensation of taste [ ]
A) 9th cranial nerve
B) 8th cranial nerve
C) 10th cranial nerve
D) 11th cranial nerve
Answer:
C) 10th cranial nerve

Question 46.
Hunger pangs are developed in stomach when [ ]
A) levels of glucose in the blood rise
B) levels of glucose in the blood remain unchanged
C) levels of glucose in the blood fall
D) all the above
Answer:
C) levels of glucose in the blood fall

Question 47.
When stomach goes empty this hormone Is secreted from the walls of the stomach [ ]
A) Ghrelin
B) Leptin
C) Secretin
D) Gastrin
Answer:
A) Ghrelin

Question 48.
Hungerpangs continue up to [ ]
A 25 to 30 minutes
B) 30 to 40 minutes
C) 25 to 40 minutes
D) 30 to 45 minutes
Answer:
D) 30 to 45 minutes

Question 49.
Umami taste is [ ]
A) Chinese savory
B) Japanese savory
C) English savory
D) Indian savory
Answer:
B) Japanese savory

Question 50.
Interaction between these increases our perceptions of the foods we eat [ ]
A) Senses of taste and see
B) Senses of sight and smell
C) Senses of taste and smell
D) Senses of smell and touch
Answer:
C) Senses of taste and smell

Question 51.
Only after the dissolved food enters these, the sense of taste is carried to brain [ ]
A) Taste buds
B) Taste receptors
C) Filiform papillae
D) All the above
Answer:
A) Taste buds

Question 52.
Taste can be identified easily when the tongue is pressed against the [ ]
A) Throat
B) Buccal cavity
C) Palate
D) Glottis
Answer:
C) Palate

Question 53.
Tincture iodine is used to confirm the presence of …. in the food. [ ]
A) starch
B) proteins
C) fats
D) minerals
Answer:
A) starch

Question 54.
As a result of chewing, food forms into a round mass called [ ]
A) Chyme
B) Bolus
C) Semi-chyme
D) Boon
Answer:
B) Bolus

Question 55.
Salivary amylase acts on these large molecules to form sugars. [ ]
A) Starch
B) Proteins
C) Fat
D) Minerals
Answer:
A) Starch

Question 56.
If the pH of a substance is below, if is ……. in nature. [ ]
A) Alkaline
B) Acidic
C) Neutral
D) None of the above
Answer:
A) Alkaline

Question 57.
Salivary amylase acts in this medium [ ]
A) Alkaline
B) Acidic
C) Neutral
D) All the above
Answer:
B) Acidic

Question 58.
Belching and burning sensation is caused by the production of this acid in the stomach [ ]
A) Nitric acid
B) Hydrochloric acid
C) Sulphuric acid
D) Phosphorous acid
Answer:
B) Hydrochloric acid

Question 59.
The partly digested food in the stomach is called [ ]
A) Bolon
B) Bolus
C) Chyme
D) Semibolus
Answer:
C) Chyme

Question 60.
Reverse peristais is occurs in ….. animals.
A) Herbivorous
B) Ruminating
C) Carnivorous
D) Omnivorous
Answer:
B) Ruminating

Question 61.
Emptying of 100% food from small intestine takes [ ]
A) 30-40 hours
B) 20-30 hours
C) 30-50 hours
D) 20-40 hours
Answer:
A) 30-40 hours

Question 62.
HCl secreted by the walls of the stomach is strong enough to digest even the parts like [ ]
A) Cartilage
B) Hard bones
C) Muscle
D) Tendons
Answer:
B) Hard bones

Question 63.
The action of the acid secreted in the stomach is countered by [ ]
A) The gastric juice secreted by the stomach
B) The pepsin present in the gastric juice
C) The fats present in the food
D) The mucus secreted by walls of stomach
Answer:
D) The mucus secreted by walls of stomach

Question 64.
Acidic nature of chyme initiates the production of hormones like [ ]
A) Trypsin, Chymotrypsin
B) Pepsin, Trypsin
C) Secretin, Cholecystokinin
D) Lipase, Sucrase
Answer:
C) Secretin, Cholecystokinin

Question 65.
Surface area of the small intestine for absorption is increased by [  ]
A) Villi
B) Lymph vessels
C) Blood vessels
D) Sphincter muscles
Answer:
A) Villi

Question 66.
The neural apparatus of our digestive tract has been nicknamed by scientists as the [     ]
A) Second Brain
B) Third Brain
C) First Brain
D) Fourth Brain
Answer:
A) Second Brain

Question 67.
Enteric nervous system is present in [  ]
A) Excretory system
B) Circulatory system
C) Digestive system
D) Transport system
Answer:
C) Digestive system

Question 68.
The neural tissue of enteric nervous system is filled with important [   ]
A) Transmittors
B) Neurotransmitters
C) Electrons
D) Electrodes
Answer:
B) Neurotransmitters

Question 69.
The second brain contains about….. million neurons. [   ]
A) 200
B) 100
C) 300
D) 400
Answer:
B) 100

Question 70.
Hard mass of feces gets stored in this part of the large intestine [   ]
A) Rectum
B) Colon
C) Caecum
D) Duodenum
Answer:
A) Rectum

Question 71.
If energy has to be obtained from food, it has to be [  ]
A) Reduced
B) Oxidised-reduced
C) Oxidised
D) Fermented
Answer:
C) Oxidised

Question 72.
Respiration is an involuntary process controlled by the medulla oblongata of this nervous system [  ]
A) Autonomous nervous system
B) Peripheral nervous system
C) Central nervous system
D) A sympathetic nervous system
Answer:
A) Autonomous nervous system

Question 73.
During respiration the movement of inter coastal/diaphragm moves the ribcage inflating and deflating the …………….
A) Liver
B) Lung
C) Abdomen
D) Kidney
Answer:
B) Lung

Question 74.
For the digestion to occur in the food canal, coordination of these two processes are necessary [ ]
A) Respiration, Circulation
B) Nutrition, Digestion
C) Excretion, Transport
D) Respiration, Reproduction
Answer:
A) Respiration, Circulation

Question 75.
These animals have extra pouch in the stomach to store quickly-swallowed food [ ]
A) Herbivores
B) Ruminates
C) Carnivores
D) Omnivores
Answer:
B) Ruminates

Question 76.
This should be added to Wheat flour mix to test starch.
A) First saliva then iodine
B) First saliva then xylene
C) First xylene then saliva
D) First xylene then iodine
Answer:
A) First saliva then iodine

Question 77.
The ratio of our dentition is 3 : 2 : 1 : 2. Here 3 represents [ ]
A) Incisors
B) Molars
C) Premolars
D) Canines
Answer:
B) Molars

Question 78.
Teeth used to tear sugarcane are ………. [ ]
A) Canines
B) Inscisors
C) Molars
D) Premolars
Answer:
A) Canines

Question 79.
List —- I List —- 2
1) Bile juice [ ] a) maltose
2) Ptyalin [ ] b) peptones
3) Trypsin [ ] c) emulsification
A) (1) — (a), (2) — (b), (3) — (c)
B) (2) — (b), (3) — (a), (1) — (c)
C) (3) — (b), (2) — (a), (1) — (c)
D) (1) — (b), (3) — (a), (2) — (c)
Answer:
C) (3) — (b), (2) — (a), (1) — (c)

Question 80.
A person took spoiled food. This would happen in him. [ ]
A) Vomiting sensation
B) Belching
C) Burning in chest and throat
D) All the above
Answer:
A) Vomiting sensation

Question 81.
Reverse peristaisis is seen in …..
A) Tiger
B) Squirrel
C) Cow
D) Cat
Answer:
C) Cow

Question 82.
The acid that is secreted in our stomach is [ ]
A) H₂SO₄
B) HCl
C) NH₃
D) HCO
Answer:
B) HCl

Question 83.
Hunger signals are controlled by the brain portion [ ]
A) Cerebrum
B) Medulla
C) Mid brain
D) Diencephalon
Answer:
D) Diencephalon

Question 84.
Experiments conducted by Russian scientist [ ]
A) Conditioned reflex
B) Unconditioned reflex
C) insight learning
D) Instincts
Answer:
A) Conditioned reflex

Question 85.
The pointed and sharp-edged teeth are …….. [ ]
A) Incisors
B) Canines
C) Premolars
D) Molars
Answer:
B) Canines

Question 86.
The movement of muscle in the jaw is controlled by [ ]
A) First cranial nerve
B) Third cranial nerve
C) Fourth cranial nerve
D) Fifth cranial nerve
Answer:
D) Fifth cranial nerve

Question 87.
Energy releasing process is [ ]
A) Excretion
B) Circulation
C) Respiration
D) None of the above
Answer:
C) Respiration

Question 88.
When chyme enters small intestine the hormones produce dare [ ]
A) Pepsin, Trypsin
B) Trypsin, chymotrypsin
C) Secretin, cholecystokinin
D) Sucrase, lipase
Answer:
B) Trypsin, chymotrypsin

Question 89.
Fluctuations of this hormone levels results in sensation of hunger and motivation of consuming food [ ]
A) Ghrelin
B) Leptin
C) Gastrin
D) Secretin
Answer:
A) Ghrelin

Question 90.
The process related to hunger pangs is [ ]
A) Respiration
B) Digestion
C) Excretion
D) Circulation
Answer:
B) Digestion

Question 91.
Finger like projections are present in [ ]
A) Mouth
B) Small intestine
C) Oesophagus
D) Large intestine
Answer:
B) Small intestine

Question 92.
Ingestion is done due to the motivation of [ ]
A) attractive to the eyes
B) flavour to nose
C) tongue for selecting food
D) all the above
Answer:
D) all the above

Question 93.
Taste can be Identified easily [ ]
A) When tongue is pressed against the palate
B) When the food is in the solid state
C) When the sight of the food
D) All the above
Answer:
A) When tongue is pressed against the palate

Question 94.
Mastication means [ ]
A) Chewing action
B) Churning action
C) Both A & B
D) None of the above
Answer:
A) Chewing action

Question 95.
The system involved in bringing about peristalsis is [ ]
A) Central nervous system
B) Peripheral nervous system
C) Autonomous nervous system
D) Sympathetic nervous system
Answer:
C) Autonomous nervous system

Question 96.
The other name for second brain is [ ]
A) Sympathetic nervous system
B) Enteric nervous system
C) Peripheral nervous system
D) Autonomous nervous system
Answer:
B) Enteric nervous system

Question 97.
Leptin involves in [ ]
A) Heart beat
B) Respiration
C) Hunger pangs
D) Suppression of hunger
Answer:
D) Suppression of hunger

Question 89.
The function of enteric nervous system is [ ]
A) Breaking down of food
B) Absorbing nutrients
C) Expelling wastes
D) All the above
Answer:
D) All the above

Question 90.
The sphincter that controls the exit of stool from the body is [ ]
A) Anal sphincter
B) Pyloric sphincter
C) Cardiac sphincter
D) None of the above
Answer:
A) Anal sphincter

Question 91.
The influence of second brain is
A) Conscious thoughts
B) Decision making
C) Centre for emotions
D) Enables us to “feel” of gut
Answer:
D) Enables us to “feel” of gut

Question 92.
Observe the given part. The role of this part during digestion is [ ]

A) Digestion completes here
B) Water and mineral salts are absorbed
C) Digested food is absorbed
D) None of the above
Answer:
B) Water and mineral salts are absorbed

Question 93.
Match the following.

List – A —- List – B
1. Acidic ( ) a) Salivary glands
2. Alkaline ( ) b) Buccal cavity
3. Ptyaline ( ) c) Stomach
A) 1 – a, 2 – b, 3 – c
B) 1 – a, 2 – c, 3 – b
C) 1 – b, 2 – c, 3 – a
D) 1 – c, 2 – b, 3 – a
Answer:
D) 1 – c, 2 – b, 3 – a

Question 94.
In human dental formula , \(\frac{2123}{2123}\) 1 represents
A) Incisors
B) Canines
C) Premolars
D) Molars
Answer:
B) Canines

Question 95.
Arrange the flow-chart in the correct order. [ ]

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

Question 96.
Gastric juice : HCl : : Bile juice :…..?
A) Pepsin
B) Trypsin
C) Lipase
D) No enzyme
Answer:
D) No enzyme

Question 97.

Ghrelin	Sensation of hunger
?	Suppression of hunger

A) Lipase
B) Arnylase
C) Trypsin
D) Leptin
Answer:
D) Leptin

Question 98.
Canines are well developed in [   ]
A) Tiger
B) Lion
C) Cow
D) A and B
Answer:
D) A and B

Question 99.
Identify the mismatched pair. [  ]
1. Villi — small intestine
2. Pyloric sphincter  – junction of small intestine and large intestine
3. Reverse peristalsis  – man
A) 1,2
B) 1,3
C) 2 only
D) 2, 3
Answer:
D) 2, 3

Question 100.
If your tastebuds are affected, what would happen? [   ]
A) We could not recognise the taste of the food
B) Burning sensation on the tongue
C) We lost our interest in having food
D) A and C
Answer:
D) A and C

Question 101.
‘X’ plays a major role in identification of taste. [ ]

A) Tongue
B) Papillae
C) Palate
D) Pharynx
Answer:
C) Palate

Question 102.
‘X’ denotes the following. [ ]

A) villate papillae .
B) foliate papillae
C) fungiform papillae
D) palate
Answer:
C) fungiform papillae

Question 103.
In the human dentition, X denotes [ ]

A) Canines
B) Molars
C) Premolars
D) Incisors
Answer:
D) Incisors

Question 104.
In the given human dentition ‘X’ represents [ ]

A) Incisors
B) Molars
C) Premolars
D) Canine
Answer:
D) Canine

Question 105.
In the given human dentition ‘X’ denotes [ ]

A) Premolars
B) Canine
C) Incisors
D) Molars
Answer:
D) Molars

Question 106.
‘X’ in the given dentition, represents [ ]
A) Incisors
B) Molars
C) Premolars
D) Canine
Answer:
C) Premolars

Question 107.
This experiment is done to prove [ ]

A) digestion
B) absorption
C) ingestion
D) how bolus moves forward
Answer:
D) how bolus moves forward

Question 108.
This figure represents the following

A) Digestion of food
B) Absorption of food
C) Peristaltic movement of bolus
D) Epiglottis
Answer:
C) Peristaltic movement of bolus

Question 109.
This figure represents the following

A) Digestion in stomach
B) Peristaltic movement of bolus
C) Peristaltic movement in stomach
D) Absorption of chyle
Answer:
C) Peristaltic movement in stomach

Question 110.
This figure represents the following

A) blood capillaries
B) pancreas
C) liver it
D) villus
Answer:
D) villus

Question 111.
In the given figure, X denotes

A) Mucus membrane
B) Epithelium
C) Mucus gland
D) Lacteal
Answer:
D) Lacteal

Question 112.
Identify the structure shown in the given figure. [ ]

A) Pyloric sphincter
B) VilIus
C) Anal sphincter
D) Lacteal
Answer:
C) Anal sphincter

Question 113.
Complete this table. [ ]

A) 10 – 15 hrs
C) 20 – 30 hrs
B) 15 – 20 hrs
D) 30 – 40 hrs
Answer:
D) 30 – 40 hrs

Question 114.
Identify then z is matched pair. [ ]
1) Incisors — cutting and biting
2) Canines — tearing and killing
3) Premolars — biting
A 1,2
B) 1,3
C) 2 only
D) 3 only
Answer:
D) 3 only

Question 115.
Stomach : chyme : : Mouth:…?…
A) Chyle
B) Bolus
C) Slime food
D) Raw food
Answer:
B) Bolus

Question 116.
Identify the mismatched pair. [ ]
1. Hunger pangs — Medulla oblangata
2. Mastication — 5th cranial nerve
3. Swallowing — Diencephalon
A) 1, 2
B) 2, 3
C) 1 only
D) 1,3
Answer:
D) 1,3