TS 10th Class Biology Bits 2nd Lesson Respiration

These TS 10th Class Biology Bits with Answers 2nd Lesson Respiration will help students to enhance their time management skills.

TS 10th Class Biology Bits 2nd Lesson Respiration

Choose the correct answer.

Question 1.
The components present in exhaled air are …………………
A) CO₂. O₂
B) O₂, water vapour
C) CO₂, water vapour
D) Water vapour only
Answer:
C) CO₂, water vapour

Question 2.
We can use lime water to test the presence of CO₂ in any experiment because we can notice this change in our observation.
A) Change in color
B) Change in smell
C) Change in state
D) Change in shape
Answer:
A) Change in color

Question 3.
When did the rate of respiration is more than the rate of photosynthesis?
1) Plant will die.
2) Storage food comes to end.
3) Quantity of O₂ decreases in atmosphere.
A) 1 true
B) 2 true
C) 1 and 2 true
D) 2 and 3 true
Answer:
D) 2 and 3 true

Question 4.
The solution used to identify the presence of Oxygen in the Anaerobic respiration experiment is …………………..
A) Diazine green
B) Potassium hydroxide
C) Betadin
D) The rod containing Sulphur
Answer:
A) Diazine green

Question 5.
Energy currency of the cell is ………….
A) ADP
B) Chloroplast
C) ATP
D) Mitochondria
Answer:
C) ATP

Question 6.
Who invented Stethoscope?
A) Rene Lennec
B) William Harvey
C) Maiphigi
D) Fabrici
Answer:
A) Rene Lennec

Question 7.
What happens, if green plants are not there on earth?
A) Living organisms will not get O₂.
B) Living organisms will not get CO₂.
C) Living organisms will not get N₂.
D) All the above.
Answer:
A) Living organisms will not get O₂.

Question 8.
Haemoglobin have the binding capacity with
A) O₂
B) SO
C) NO₂
D) PO₄
Answer:
A) O₂

Question 9.
The structural and functional units of the Lung are
A) Bronchioles
B) Alveoli
C) Cristae
D) Nephron
Answer:
B) Alveoli

Question 10.
Identify the sequence of different stages in respiration.
A) Breathing → Blood → Lungs → Cel hilar Respiration
B) Breathing → Lungs → Blood →Cel hilar Respiration.
C) Breathing → Lungs → Cellular Respiration – Blood.
D) Lungs → Tissue →Blond → Cellular Respiration.
Answer:
B) Breathing → Lungs → Blood →Cel hilar Respiration.

Question 11.
Identify the diagram.

A) Stomata
B) Root
C) Lenticels
D) Tendrils
Answer:
C) Lenticels

Question 12.
Observe the following experimental setup and find out the result.

A) Lime water turns into milky white.
B) Water vapour is formed on the inner surface of the bottle.
C) Germinating seeds release Oxygen.
D) Seeds colour turns into white colour.
Answer:
A) Lime water turns into milky white.

Question 13.
In this process, food is broken down for release of energy. [ ]
A) Photosynthesis
B) Respiration
C) Excretion
D) Circulation
Answer:
B) Respiration

Question 14.
The word respiration comes from … [ ]
A) English
B) Greek
C) Latin
D) French
Answer:
C) Latin

Question 15.
The gas liberated on heating powdered charcoal is [ ]
A) Carbon dioxide
B) Oxygen
C) Nitrogen
D) All
Answer:
A) Carbon dioxide

Question 16.
The gas needed for combustion of substances is ………….. [ ]
A) Oxygen
B) Carbon dioxide
C) Phosphorous
D) Nitrogen
Answer:
A) Oxygen

Question 17.
The air we breath out precipitates ……… [ ]
A) Water
B) Lime water
C) Sodium Hydroxide
D) Sugar solution
Answer:
B) Lime water

Question 18.
Exchange of gases takes place in these parts of lungs………….. [ ]
A) Bronchioles
B) Alveoli
C) Bronchus
D) Pleura
Answer:
B) Alveoli

Question 19.
Air is filtered In this part of the respiratory system. [ ]
A) Nose
B) Pharynx
C) Larynx
D) Nasal cavities
Answer:
D) Nasal cavities

Question 20.
This muscular valve in the pharynx controls movement of air and food towards their respective passages. [ ]
A) Oesophagus
B) Palate
C) Glottis
D) Epiglottis
Answer:
D) Epiglottis

Question 21.
Single-celled organisms take in oxygen from ….. [ ]
A)Air
B) Soil
C) Water
D) Both air and water
Answer:
C) Water

Question 22.
Vocal cords are present in this part.
A) Pharynx
B) Larynx
C) Bronchus
D) Lungs
Answer:
B) Larynx

Question 23.
Trachea is commonly called as ……
A) Wind pipe
B) Sound box
C) Vocal cords
D) Septum
Answer:
A) Wind pipe

Question 24.
If the alveoli of our lungs are spread out, they will cover an area of nearly
A) 60 m²
B) 160 m²
C) 80 m²
D) 100 m²
Answer:
B) 160 m²

Question 25.
The muscular structure in the chest cavity that separates abdomen from respiratory system is ……
A) Rib cage
B) Diaphragm
C) Epiglottis
D) Oesophagus
Answer:

Question 26.
The % of oxygen in exhaled air is……
A) 21
B) 16
C) 79
D) 14
Answer:
B) 16

Question 27.
The following alternative apparatus arrangement is to prove ……. [ ]

A) CO₂ is evolved in respiration
B) O₂ is released in respiration
C) CO₂ is released in respiration
D) Heat is released in respiration
Answer:
D) Heat is released in respiration

Question 28.
This is an oxygen carrying pigment in blood [ ]
A) Haemoglobin
B) Prothrombin
C) Fibrinogen
D) All
Answer:
A) Haemoglobin

Question 29.
In bacterium, cellular respiration takes place in ……. [ ]
A) Mitochondria
B) Cytoplasm
C) Both Mitochondria and Cytoplasm
D) Cell membrane
Answer:
B) Cytoplasm

Question 30.
Each ATP molecule gives how many calories of energy?
A) 7600 calories
B) 7800 calories
C) 7200 calories
D) 7500 calories
Answer:
C) 7200 calories

Question 31.
This is the first stage in the oxidation of glucose molecule. [ ]
A) Kreb’s cycle
B) Calvin cycle
C) Electron transport
D) Glycolysis
Answer:
D) Glycolysis

Question 32.
Accumulation of this results in muscular pain. [ ]
A) Citric acid
B) Nitric acid
C) Lactic acid
D) Hydrochloric acid
Answer:
C) Lactic acid

Question 33.
The volume of the dough increased in bread preparation due to ….. [ ]
A) Diffusion
B) Fermentation
C) Distillation
D) Evaporation
Answer:
B) Fermentation

Question 34.
Identify the correct path in Human respiratory system. [ ]
A) Cellular respiration → Gaseous exchange at tissue level → Gas transport by blood → Gaseous exchange at lungs → Breathing
B) Breathing → Exchange of gases at lungs → Gas transport by blood → Gaseous exchange at tissue level → Cellular respiration
C) Exchange of gases at lungs → Breathing → Gas transport by blood → Cellular respiration → Exchange of gases in lungs
D) Gas transport by blood → Exchange of gases in lungs → Breathing → Cellular respiration → Exchange of gases at tissue level
Answer:
B) Breathing → Exchange of gases at lungs → Gas transport by blood → Gaseous exchange at tissue level → Cellular respiration

Question 35.
Several intermediate products are formed in ….. [ ]
A) Combustion
B) Respiration and Combustion
C) Respiration
D) Heating charcoal powder
Answer:
C) Respiration

Question 36.
Respiratory organs in cockroach are ………….
A) Blood vessels
B) Mucous glands
C) Gills
D) Trachea
Answer:
D) Trachea

Question 37.
Respiration in Amoeba and Hydra occurs by …….
A) Transpiration
B) Osmosis
C) Diffusion
D) Inhalation
Answer:
C) Diffusion

Question 38.
Cutaneous respiration occurs in …..
A) Frog
B) Earthworm
C) Leech
D) All
Answer:
D) All

Question 39.
The reason for the animals to develop different types of respiratory organs is ……
A) Body size, habitat in which they live
B) Availability of water
C) Type of circulatory system
D) All the above
Answer:
D) All the above

Question 40.
Gills are for …………
A) Terrestrial respiration
B) Aquatic respiration
C) Pulmonary respiration
D) All types of respiration
Answer:
B) Aquatic respiration

Question 41.
In pulmonary respiration, respiratory organs are …….
A) Skin
B) Lungs
C) Tracheal
D) Bronchus
Answer:
B) Lungs

Question 42.
Haemoglobin of blood transports …..
A) Oxygen only
B) Carbon dioxide only
C) Both oxygen and carbon dioxide
D) Nitrogen only
Answer:
C) Both oxygen and carbon dioxide

Question 43.
In plants exchange of gases takes place through ……………..
A) Stomata
B) Surface of roots
C) Lenticels on stem
D) All the above
Answer:
D) All the above

Question 44.
Breathing roots are present in:  [   ]
A) Aquatic plants
B) Mangrove plants
C) Terrestrial plants
D) Desert plants
Answer:
B) Mangrove plants

Question 45.
These are the end products of aerobic respiration. [   ]
A) CO₂
B) H₂O
C) Energy
D) All the above
Answer:
D) All the above

Question 46.
During day time the rate of this process is usually higher than respiration …………. [   ]
A) Photosynthesis
B) Transport
C) Nutrition
D) Circulation
Answer:
A) Photosynthesis

Question 47.
The structure that plays an important role in respiratory movements: [   ]
A) Epiglottis
B) Sinus venosus
C) Monocyte
D) Diaphragm
Answer:
D) Diaphragm

Question 48.
Number of lobes present in the left lung of man …………..[   ]
A) 2
B) 3
C) 4
D) 5
Answer:
A) 2

Question 49.
Larynx is ……… [ ]
A) A part of Trachea
B) A part of lungs
C) An upper part of Trachea
D) A part of Bronchiole
Answer:
C) An upper part of Trachea

Question 50.
Which of the following is the correct sequence of air passage during inhalation?
A) Nostrils → Larynx →Pharynx → Trachea → Lungs
B) Nasal passage → Trachea → Pharynx → Larynx → Alveoli
C) Larynx → Nostrils → Pharynx → Lungs
D) Nostrils → Pharynx → Larynx →Trachea → Alveoli
Answer:
D) Nostrils → Pharynx → Larynx →Trachea → Alveoli

Question 51.
Which of the following is known as the energy currency of cells in biology? [ ]
A) ATP
B) DDT
C) DTP
D) ADP
Answer:
A) ATP

Question 52.
In cockroaches, air enters the body through ……. [ ]
A) Lungs
B) Gills
C) Spiracles
D) Skin
Answer:
C) Spiracles

Question 53.
Which of the following is most likely to have a much higher breathing rate?
A) Dog
B) Cat
C) Buffalo
D) Man
Answer:
D) Man

Question 54.
Exhaled air contains …………… [ ]
A) Carbon dioxide
B) H₂O
C) Nitrogen
D) CO₂, HO
Answer:
D) CO₂, HO

Question 55.
A flap like muscular valve controls movement of air and food is [ ]
A) Glottis
B) Palate
C) Epiglottis
D) Larynx
Answer:
C) Epiglottis

Question 56.
Lenticels are the respiratory organs exist in this part of plant [ ]
A) Young
B) Soft
C) Woody
D) None
Answer:
C) Woody

Question 57.
Mangrove trees growing near seashores respire with their [ ]
A) Stems
B) Leaves
C) Aerial roots
D) Roots
Answer:
C) Aerial roots

Question 58.
These finally terminate in clusters of air sacs called alveoli [ ]
A) Bronchioles
B) Bronchus
C) Bronchi
D) All the above
Answer:
A) Bronchioles

Question 59.
Breathing is the process of [ ]
A) Inhaling
B) Exhaling
C) Inhaling and exhaling
D) Taking in CO₂
Answer:
C) Inhaling and exhaling

Question 60.
Flattened muscular structure that helps the lungs in moving air into and out of them [ ]
A) Ribs
B) Diaphragm
C) Chest wall
D) Skin
Answer:
B) Diaphragm

Question 61.
Pleura are the membranes surrounding [ ]
A) Heart
B) Liver
C) Lungs
D) Kidney
Answer:
C) Lungs

Question 62.
The percentage of CO₂ in exhaled air [ ]
A) 0.04
B) 4
C) 14
D) 5
Answer:
B) 4

Question 63.
Even after complete expiration the amount of air remains in our lungs is [ ]
A) 5800 ml
B) 4600 ml
C) 1200ml
D) 500ml
Answer:
C) 1200ml

Question 64.
Haemoglobin contains an atom of [ ]
A) Magnesium
B) Calcium
C) Potassium
D) Iron
Answer:
D) Iron

Question 65.
Oxygen combines with haemoglobin to form [ ]
A) Oxyhaemoglobin
B) Haemo oxygen
C) Haemogloboxide
D) None
Answer:
A) Oxyhaemoglobin

Question 66.
Carbon dioxide is transported in the blood as [ ]
A) Carbonate
B) Bicarbonate
C) Haemocarbonate
D) All the above
Answer:
B) Bicarbonate

Question 67.
At a height of 13km above the sea level, the concentration of oxygen is ………….[ ]
A) Much higher than the oxygen at sea level
B) Much lower about \(\frac{1}{5} \text { th }\) at sea level
C) Much lower about \(\frac{1}{6} \text { th }\) at sea level
D) Equal to oxygen at sea level
Answer:
B) Much lower about \(\frac{1}{5} \text { th }\) at sea level

Question 68.
The concentration of oxygen in tissue cells is only ………….. [ ]
A) \(\frac{1}{3} \mathrm{rd}\) of that in the lungs
B) \(\frac{1}{4} \text { th }\) of that in the lungs
C) \(\frac{1}{5} \text { th }\) of that in the lungs
D) \(\frac{1}{2} \text { th }\)of that in the lungs
Answer:
A) \(\frac{1}{3} \mathrm{rd}\) of that in the lungs

Question 69.
In Eukaryotic cells, the sites of cellular respiration are ………….. [ ]
A) Cytoplasm
B) Mitochondria
C) Cytoplasm, mitochondria
D) Mitochondria, Ribosomes
Answer:
C) Cytoplasm, mitochondria

Question 70.
In the first stage of respiration glycolysis, glucose is converted into [ ]
A) Three molecules of pyruvic acid
B) Two molecules of pyruvic acid
C) CO₂ and H₂O
D) CO₂ and Energy
Answer:
B) Two molecules of pyruvic acid

Question 71.
When we undertake strenuous exercise we build up what is called ……………
A) Oxygen debt
B) CO₂ debt
C) Nitrogen debt
D) All the above
Answer:
A) Oxygen debt

Question 72.
Wild yeasts are normally found growing on the skins of fruits like [ ]
A) Grapes
B) Apples
C) Banana
D) Grapes and apples
Answer:
D) Grapes and apples

Question 73.
We can remove dissolved oxygen from glucose solution by beating it for [ ]
A) An hour
B) A second
C) A minute
D) Two hours
Answer:
C) A minute

Question 74.
The blue dye diazine green (Janus Green B) turns to which colour when the supply of oxygen around it is short [ ]
A) Red
B) Pink
C) Yellow
D) Black
Answer:
B) Pink

Question 75.
The gas released when a baker prepares a dough by mixing yeast in it [ ]
A) Carbon monoxide
B) Carbon dioxide
C) Oxygen
D) Nitrogen dioxide
Answer:
B) Carbon dioxide

Question 76.
In fermentation yeast cells produce this substance from sugar (glucose.)
A) Methanol
B) Ethanol
C) Acetic acid
D) Nitric acid
Answer:
B) Ethanol

Question 77.
When we preserve idly, dosa dough at our home we will notice the smell of ethanol [ ]
A) Fermentation
B) Distillation
C) Carboxylation
D) Nitrification
Answer:
A) Fermentation

Question 78.
The ethanol can be separated from the yeast glucose mixture by the process of [ ]
A) Destructive distillation
B) Fractional distillation
C) Fermentation
D) Decantation
Answer:
B) Fractional distillation

Question 79.
Ethanol boils at a lower temperature of [ ]
A) About 60°C
B) About 65°C
C) About 70°C
D) About 75°C
Answer:
C) About 70°C

Question 80.
“Respiration was a process like combustion “. This was stated by [ ]
A) Josph Priestley
B) Jan lngenhousz
C) Engelman
D) Lavoisier
Answer:
D) Lavoisier

Question 81.
Skin is the respiratory organ [ ]
A) Tracheal respiration
B) Bronchial respiration
C) Cutaneous respiration
D) Pulmonary respiration
Answer:
C) Cutaneous respiration

Question 82.
In most- plant gaseous exchange takes place through [ ]
A) Stomata
B) Root
C) Air spaces
D) Guard cells
Answer:
A) Stomata

Question 83.
These organisms obtain oxygen and expel carbon dioxide directly from the body by flic process of diffusion
A) Amoeba
B) Hydra
C) Planarians
D) All the above
Answer:
D) All the above

Question 84.
Tissue in this plant produces oxygen and also required for producing energy and carbon dioxide
A) Mangrove
B) Fern
C) Orchids
D) Ornamental
Answer:
C) Orchids

Question 85.
Adaptations seen in the plants growing in water logged conditions
A) Much larger air spaces in stems
B) Hollow stem
C) Much larger air spaces and hollow stem
D) None
Answer:
C) Much larger air spaces and hollow stem

Question 86.
Respiration is a …………..
A) Anabolic process
B) Catabolic process
C) Fermentation process
D) None
Answer:
B) Catabolic process

Question 87.
In most plants during night time the rate of this process is higher than other processess [ ]
A) Photosynthesis
B) Respiration
C) Transport
D) Transpiration
Answer:
B) Respiration

Question 88.
Alveoli are the units of [ ]
A) Kidney
B) Lungs
C) Blood
D) Liver
Answer:
B) Lungs

Question 89.
‘C’ shaped cartilaginous rings are present in this part of respiratory system of man [ ]
A) Larynx
B) Pharynx
C) Trachea
D) Glottis
Answer:
C) Trachea

Question 90.
In earthworm haemoglobin is present in [ ]
A) Blood
B) Plasma
C) Lymph
D) All the above
Answer:
B) Plasma

Question 91.
In woman the part that plays major role in respiratory movements [ ]
A) Diaphragm
B) Lungs
C) Liver
D) Ribs
Answer:
D) Ribs

Question 92.
Animals which live on land are called [ ]
A) Terrestrial animals
B) Aquatic animals
C) Amphibious animals
D) Nocturnal animals
Answer:
A) Terrestrial animals

Question 93.
Aquatic animals live in [ ]
A) Land
B) Forest
C) Water
D) Desert
Answer:
C) Water

Question 94.
Example for amphibious animal [ ]
A) Frog
B) Salamander
C) Frog and Salamander
D) Lizard
Answer:
C) Frog and Salamander

Question 95.
Animals that can live both on land and water are called [ ]
A) Terrestrial animals
B) Amphibious animals
C) Aquatic animals
D) Diurnal animals
Answer:
B) Amphibious animals

Question 96.
In man nostrils open into [ ]
A) Pharynx
B) Larynx
C) Nasal cavities
D) Palate
Answer:
D) Palate

Question 97.
Larynx contains sound producing particles called [ ]
A) Vocal cards
B) Cartilaginous rings
C) Dust
D) All the above
Answer:
A) Vocal cards

Question 98.
Trachea is also known as [ ]
A) Air pipe
B) Sound pipe
C) Wind pipe
D) Anaemo pipe
Answer:
C) Wind pipe

Question 99.
The carbon dioxide In the blood is exchanged for oxygen in the alveoli by process called [  ]
A) Osmosis
B) Diffusion
C) Osmoregulation
D) Cohesion
Answer:
B) Diffusion

Question 100.
The tracheal respiratory system is seen in ……….
A) Aves
B) Insects
C) Reptiles
D) Mammals
Answer:
B) Insects

Question 101.
Breathing roots or Aerial roots are present in [  ]
A) Mangrove plants
B) Orchids
C) Ornamental plants
D) Desert plants
Answer:
A) Mangrove plants

Question 102.
Label the parts X and Y in given diagram.  [  ]
A) CO₂, capillary network
B) Alveolus, O₂,
C) O₂, CO₂

D) Blood cell, CO₂
Answer:
A) CO₂, capillary network

Question 103.
Write statement about anaerobic respiration. [ ]
A) it takes place in all flowering plants
B) It produces more energy and heat
C) It produces less energy
D) End product is CO₂, H₂O only
Answer:
C) It produces less energy

Question 104.
What is the role of Janus Green — B indicator in anaerobic experiment with yeast?
A) To test presence of CO₂,
B) To test presence of Hydrogen
C) To test presence of yeast
D) To test the presence of oxygen
Answer:
D) To test the presence of oxygen

Question 105.
Agents present in exhaled air…………….
A) CO₂, O₂
B) O water vapour
C) CO₂, water vapour
D) Water vapour
Answer:
C) CO₂, water vapour

Question 106.
Living animals and plants usually produce energy in the form of [   ]
A) Pressure
B) Water vapour
C) Heat
D) None
Answer:
C) Heat

Question 107.
Power houses of cell are [ ]
A) Golgi complex
B) Endoplasmic reticulum
C) Mitochondria
D) Vacuole
Answer:
C) Mitochondria

Question 108.
Energy stored in one AlP …….
A) 7200 cal
B) 7200 kilo cal
C) 7500 cal
D) 7500 kilo cal
Answer:
A) 7200 cal

Question 109.
When air is blown from mouth into a test- tube containing lime water, the lime water turns milky due to the presence of
A) Oxygen
B) Carbon dioxide
C) Nilrogen
D) Water vapour
Answer:
C) Nilrogen

Question 110.
During the deficiency of oxygen in tissues of lemon beings, pyruvic acid is converted into lactic acid in [ ]
A) Cytoplasm
B) Chloroplast
C) Mitochondria
D) Golgi body
Answer:
C) Mitochondria

Question 111.
The photosynthesis in a plant la not taking place during the daytime If the plant is releasing ……..
A) Water vapour
B) Oxygen
C) Carbon dioxide
D) All the above
Answer:
D) All the above

Question 112.
Agent in Er-haled air [ ]
A) CO₂
B) Water vapour
C) Nitrogen
D) All
Answer:
D) All

Question 113.
The % of carbon dioxide in exhaled air
A) 0.04%
B) 0.005%
C) 4%
D) 5%
Answer:
C) 4%

Question 114.
Products formed due to the fermentation of pyruvate by yeasts are [ ]
A) Ethaiol
B) CO₂
C) Energy
D) All the above
Answer:
D) All the above

Question 115.
Inhalation and exhalation are under the control of the [ ]
A) Lungs
B) Cerebrum
C) Medulla oblongata
D) Cerebellum
Answer:
C) Medulla oblongata

Question 116.
Aerobic respiration
A) Yields less energy
B) Occurs in the absence of oxygen
C) Yields more energy
D) Causes incomplete breakdown of organic molecules
Answer:
C) Yields more energy

Question 117.
The chemical breakdown of nutriental that occurs Inside the living cells of humans is called [ ]
A) Expiration
B) Inspiration
C) Cellular respiration
D) Anaerobic respiration
Answer:
C) Cellular respiration

Question 118.
Pharynx opens into the trachea through [ ]
A) Glottis
B) Larynx
C) Epiglottis
D) Palate
Answer:
B) Larynx

Question 119.
The place between the pleural membranes is occupied by [ ]
A) Cerebrospinal fluid
B) Pericardial fluid
C) Vaccum
D) Pleural fluid
Answer:
A) Cerebrospinal fluid

Question 120.
The percentage of oxygen in atmosphere
A) 18%
B) 16%
C) 7%
D) 21%
Answer:
D) 21%

Question 121.
The percentage of oxygen in exhaled air ……………
A) 21%
B) 20%
C) 16%
D) 19%
Answer:
B) 20%

Question 121.
Respiration is a process in which [  ]
A) energy is stored in the form of ADP
B) energy is used up
C) energy is released and stored in the form of ATP
D) energy is not released at all
Answer:
C) energy is released and stored in the form of ATP

Question 122.
Which of the following organisms can live without oxygen of air [ ]
A) Amoeba
B) Sheep
C) Yeast
D) Leech
Answer:
C) Yeast

Question 123.
If In the following equation O₂ in absent, then the result will be (CH₂O)_n + O₂ → CO₂ + H₂O + Energy high yielding (Approx . 686 Kcal)
A) Energy will not be produced.
B) Energy will not be oxidated.
C) Amount of energy will be substantially low. (Approx. 56 Kcal)
D) Ithyl alcohol will be formed and small amount of energy will be released.
Answer:
C) Amount of energy will be substantially low. (Approx. 56 Kcal)

Question 124.
Respiratory organs of Dolphins! [   ]
A) Lungs
B) Gills
C) Skin
D) Trachea
Answer:
A) Lungs

Question 125.
According to Lavoisler carbon dioxide is [ ]
A) respirable air
B) chalky air
C) inhaled air
D) atmospheric air
Answer:
B) chalky air

Question 126.
The air we breathe out is warmer than air because [   ]
A) Heat is liberated
B) Carbon dioxide is liberated
C) Nitrogen is liberated
D) All the above
Answer:
A) Heat is liberated

Question 127.
Lime water is converted to milky due to the presence of [ ]
A) Oxygen
B) Water vapour
C) Carbon dioxide
D) None of the above
Answer:
C) Carbon dioxide

Question 128.
The greater quantity of atmospheric air is of [  ]
A) Nitrogen
B) Oxygen
C) CO₂
D) Water vapour
Answer:
A) Nitrogen

Question 129.
The micro organism responsible for fermentation is ……………
A) Fungi
B) Algae
C) Bacterta
D) Yeast
Answer:
D) Yeast

Question 130.
The process where food is broken down to release energy is
A) Digestion
B) Respiration
C) Excretion
D) Photosynthesis
Answer:
B) Respiration

Question 131.
The respiratory organs in fish are …………….
A) skin
B) lungs
C) gills
D) trachea
Answer:
C) gills

Question 132.
The animals in which gases take place through diffusion arc [  ]
A) Amoeba
B) Hydra
C) Planaria
D) All the above
Answer:
D) All the above

Question 133.
The flexible and flattened muscle present in the chest cavity which is useful to more lungs forward and is [  ]
A) Circular muscle
B) Cardiac muscle
C) Diaphragm
D) None of these
Answer:
C) Diaphragm

Question 134.
Identify the following figure. [  ]

A) Lungs
B) Chest cavity
C) Alveoli
D) Heart
Answer:
C) Alveoli

Question 135.
The structure that is spong in [  ]

A) Heart
B) Lungs
C) Kidney
D) None of these
Answer:
B) Lungs

Question 136.
The membrane that protects lungs is……………
A) Mucous membrane
B) Pericardium
C) Pleura
D) Tympanum
Answer:
C) Pleura

Question 137
1) Cutaneous respiration ( c ) a) Lungs
2) Bronchial respiration ( b ) b) Skin
3) Pulmonary respiration ( a ) c) Gills
Correct answer is [ ]
A) 1 and 2 are correct
3) 2 and 3 are correct
C) Only 3 is correct
D) None of the above
Answer:
C) Only 3 is correct

Question 138.
Oil is applied on the lower side of the leaf. The result is ………
A) Photosynthesis does not take place.
B) Respiration does not take place.
C) Transpiration does not take place.
D) All the above
Answer:
D) All the above

Question 139.
At a height of 13 km above sea level, the concentration of oxygen is ……………
A) much lower
B) medium
C) higher
D) zero level
Answer:
A) much lower

Question 140.
All movements of breathing are controlled by ……….
A) muscles
B) nerves
C) diaphragm
D) ribs
Answer:
B) nerves

Question 141.
Haemoglobin is made up of ……………
A) Globirm
B) Iron
C) Porphyrin
D) All the above
Answer:
D) All the above

Question 142.
Identify ‘X’
A) Air space
B) Stomata
C) Mesophyll
D) Epidermis
Answer:
B) Stomata

Question 143.
Observe the following statements.
a) All living cells of an organism perform respiration
b)Respiration is a catabolic process.
A) a correct, b false
B) b correct, a false
C) Both a, b false
D) Both a, b correct
Answer:
D) Both a, b correct

Question 144.
Match the following.
List – A List – B
1) Frog ( ) a) Trachea
2) Cockroach ( ) b) Diffusion
3) Amoeba ( ) c) Skin
A 1-a, 2-b, 3-c
B) 1-b, 2-a,3-c
C) 1-b,2-c,3-a
D) 1-c,2-a,3-b
Answer:
D) 1-c,2-a,3-b

Question 145.
In the figure, X denotes the following.

A) Air space
B) Water film
C) Stomata
D) Lenticels
Answer:
B) Water film

Question 146.
Identify the mismatched pair. [   ]
1) Alveoli — Lungs
2) Larynx – Voice box
3) Respiratory substrate — ATP
A) 1,2
B) 2,3
C) 3 only
D) 1 only
Answer:
C) 3 only

Question 147.
Arrange the following flow chart in the correct order. [    ]

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

Question 148.
In this figure, x denotes the following.

A) Branchiole
B) Trachea X
C) Bronchus
D) Alveolus
Answer:
A) Branchiole

Question 149.
The man in the given figure is carrying an object on his back while climbing the icy mountains. Can you guess what is that?

A) Water flask
B) Tool kits
C) Parachute
D) Oxygen Cylinder
Answer:
D) Oxygen Cylinder

Question 150.
It is an important structure in respiration. Can you name this?

A) Ribs
B) Skeleton
C) Muscles
D) Diaphragm
Answer:
D) Diaphragm

Question 151.
Man : Lungs, Frog: [ ]
A) Skin
B) Lungs
C) Bucco pharengial cavity
D) All the above
Answer:
D) All the above

Question 152.
Complete this flow chart.

A) Bronchus
B) Alveolus
C) Pharynx
D) Bronchioles
Answer:
C) Pharynx

Question 153.
Arrange the flow chart in the correct order. [ ]

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

Question 154.
Match the following. I I
List – A List – B
1) Respiratory roots ( ) a) Hydrophytes
2) Hallow stems ( ) b) Raddish
3) Storage roots ( ) c) Mangrove plants
A) 1-c,2-b,3-a
B) 1-a,2-b,3-c
C) 1-a, 2-c, 3-b
D) 1-c,2-a,3-b
Answer:
B) 1-a,2-b,3-c

Question 155.
The bunch of grapes like structure are seen in ………….

A) Liver
B) Kidney
C) Lungs
D) Brain
Answer:
C) Lungs

Question 156.
This structure of our body play an important role in …….

A) Inhalation
B) Exhalation
C) Excretion
D) Both A and B
Answer:
D) Both A and B

Question 157.
This diagram is showing

A) Structure of lungs
B) Structure of alveoli
C) Circulation of blood
D) Diffusion pathway for gases between lungs and capillaries.
Answer:
D) Diffusion pathway for gases between lungs and capillaries.

Question 158.
What happens if the mountaineer does not carry the cylinder on his back?

A) He can’t climb the mountain
B) He will become very heavy
C) He will fell down from the rocks
D) He will die due to lack of oxygen in the higher altitude
Answer:
D) He will die due to lack of oxygen in the higher altitude

Question 159.
This cell organell is known as ………….. [ ]

A) Suicidal bags
B) Control room of the cell
C) Protein factories
D) Power house of the cell
Answer:
D) Power house of the cell

Question 160.
During the race, this athlete got severe muscular pain and fell down. Can you guess the reason for that?

A) Lack of vitamins
B) Protein deficiency
C) Lack of exercise
D) Increase in the concentration of lactic acid in blood due to strenous muscular work.
Answer:
D) Increase in the concentration of lactic acid in blood due to strenous muscular work.

Question 161.

This graph shows the relation between [   ]
A) Exercise — Energy
B) Exercise — Tiredness
C) Accumulation of lactic acid — strenous exercise
D) Time and exercise
Answer:
C) Accumulation of lactic acid — strenous exercise

Question 162.
X is denoting the finger like projection. Can you name them?

A) Matrix
B) Cristae
C) Inner membrane
D) Outer membrane
Answer:
B) Cristae

Question 163.
Why do you use liquid paraffin in this experiment? [   ]

A) To grow the yeast
B) To stabilize the heat
C) To cut off the supply of oxygen onto the mixture
D) To trap the liberated CO₂ gas
Answer:
C) To cut off the supply of oxygen onto the mixture

Question 164.
At the end of this experiment what change do you notice in the bicarbonate solution? [   ]

A) It turns into blue
B) It turns into green
C) It turns into milky white
D) There is no change in the solution
Answer:
C) It turns into milky white

Question 165.
Can you identify these breathing structures? [  ]

A) Stomata
B) Lenticels
C) Aerial roots
D) Special respiratory tissue
Answer:
B) Lenticels

Question 166.
In which plants do you find the above structures? [ ]

A) Xerophytes
B) Mesophytes
C) Climbers
D) Mangrove trees of the tropics
Answer:
D) Mangrove trees of the tropics

Question 167.
What mistake do you find in the arrangement of the apparatus in the above experiment? [  ]

A) KOH pellets are not used
B) Thermometer is not inserted
C) Diazine Green is not present
D) Lime water jar is absent
Answer:
D) Lime water jar is absent

Question 168.
Can you guess, why the lime water is the small beaker turns into milky white? [ ]

A) Liberation of heat
B) Liberation of oxygen
C) CO₂ is evolved during respiration.
D) The seeds inhale oxygen
Answer:
C) CO₂ is evolved during respiration.

Question 169.
What mistake do you find in the arrangement of apparatus in the above experiment? [  ]

A) lime water jar is absent
B) KOH pellets are absent
C) Seeds are very few in number
D) Thermometer is not inserted in the middle of the germinating seeds.
Answer:
D) Thermometer is not inserted in the middle of the germinating seeds.

Question 170.
In this experiment where does the heat come from? [   ]

A) Germinating seeds
B) CO₂
C) O₂
D) Respiration by the germinating seeds
Answer:
D) Respiration by the germinating seeds

Question 171.
Match the following. [   ]
List-A List-B
1) Alcohol ( ) a) Yoga bhyasa
2) Patanjali ( ) b) Pleura
3) Lungs ( ) c) CO₂
A) 1-a, 2-b, 3-c
B) 1-a,2-c,3-b
C) 1-c,2-b,3-a
D) 1-c,2-a, 3-b
Answer:
D) 1-c,2-a, 3-b

Question 172.
Match the following.
List-A List-B
1) Fish ( ) a) Lungs
2) Whale ( ) b) Trachea
3) Grasse hopper ( ) c) Gills
A) 1-a, 2-b, 3-c
B) 1-b,2-a,3-c
C) 1-c,2-b,3-a
D) 1-c,2-a, 3-b
Answer:
D) 1-c,2-a, 3-b

Question 173.
Oxygen debt is due to ….. [ ]
A) Lack of energy
B) Lack of vitamins
C) Strenous exercises
D) None
Answer:
C) Strenous exercises

Question 174.
Respiration in euglena takes place through [ ]
A) gills
B) skin
C) lungs
D) diffusion
Answer:
D) diffusion

Question 175.
What is the life span of RBC? [ ]
A) 120 days
B) 130 days
C) 140 days
D) 100 days
Answer:
A) 120 days