Practice the AP 10th Class Biology Bits with Answers Chapter 2 Respiration on a regular basis so that you can attempt exams with utmost confidence.

AP State Syllabus 10th Class Biology Bits 2nd Lesson Respiration with Answers

Concept – 1 : Introduction

Question 1.
The term “respiration” is derived from ……………….
A) Greek
B) English
C) Latin
D) Germany
Answer:
C) Latin

Question 2.
The term respiration came into use, a century after the word ……………….. was used, way back in the 14th century.
A) Breathing
B) Nutrition
C) Inhalation
D) Exhalation
Answer:
A) Breathing

AP 10th Class Biology Bits Chapter 2 Respiration

Question 3.
Oxygen was discovered by …………………….
A) Joseph Priestley
B) Lavoisier
C) Engelmann
D) Von Sachs
Answer:
B) Lavoisier

Question 4.
In which period O2 is considered to be a consuming gas ?
A) Before Alexander
B) At the time of Lavoisier
C) After Lavoisier
D) Before Lavoisier
Answer:
B) At the time of Lavoisier

Question 5.
Fixed air = CO2 : : Vitiated gas = ……………………… ?
A) Hydrogen
B) Nitrogen
C) Oxygen
D) Carbonate
Answer:
C) Oxygen

Question 6.
Which of the following scientists found that the air that we breathe out precipitated lime water ?
A) Lavoisier
B) Priestley
C) Ingenhouz
D) Pelletier
Answer:
A) Lavoisier

Question 7.
Fixed air means :
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Argon
Answer:
B) Carbon dioxide

Question 8.
The life process that leads to fine utilization of food is :
A) Photosynthesis
B) Respiration
C) Digestion
D) Nutrition
Answer:
B) Respiration

Question 9.
The gas which was called “fixed air” dining the period of “Lavoisier”
A) Hydrogen
B) Carbon dioxide
C) Oxygen
D) Nitrogen
Answer:
B) Carbon dioxide

AP 10th Class Biology Bits Chapter 2 Respiration

Question 10.
“Human Physiology” was written by ……………….. in mid 19th century.
A) John Daper
B) John Howard
C) John Curie
D) John Dalton
Answer:
A) John Daper

Concept – 2 : Events/Steps in Respiration

Question 11.
The muscular flap like valve that prevents entry of food into respiratory tract
A) Tongue
B) Pharynx
C) Tricuspid valve
D) Epiglottis
Answer:
D) Epiglottis

Question 12.
The structure that channalises the air into lungs
A) Alveolus
B) Nasal cavity
C) Bronchus
D) Trachea
Answer:
D) Trachea

Question 13.
Arrange the following in order.
1. Pharynx
2. Larynx
3. Alveolus
4. Bronchus

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

Question 14.
Consider the following statements.
a) Vibration of vocal cords generate voice
b) Exhaled air creates vibrations at vocal cords
A) Both a and b are true
B) a is true, b is false
C) a is false, b is true
D) Both a and b are false
Answer:
A) Both a and b are true

Question 15
Consider the following statements.
a) Temperature of inhaled air is regulated to the body temperature in nasal cavities.
b) The inhaled air becomes moist.
A) Both a and b are true
B) a is true, b is false
C) a is false, b is true
D) Both a and b are false
Answer:
A) Both a and b are true

Question 16.
The structural and functional units that participate in the gaseous exchange of
lungs are ………………….
A) Bronchus
B) Bronchioles
C) Alveoli
D) Dendrites
Answer:
C) Alveoli

AP 10th Class Biology Bits Chapter 2 Respiration

Question 17.
Pharynx opens into the trachea through:
A) glottis
B) larynx
C) palate
D) epiglottis
Answer:
D) epiglottis

Question 18.
AP 10th Class Biology Bits Chapter 2 Respiration 1
Arrange the flow chart in a proper way.
A) 1, 2, 4, 5, 3
B) 3, 4, 5, 1, 2
C) 1, 5, 4, 3, 2
D) 1, 2, 3, 4, 5
Answer:
D) 1, 2, 3, 4, 5

Question 19.
Choose the correct pathway
A) Nostrils → Pharynx → Trachea → Blood
B) Blood → Nostrils → Nasal cavity → Pharynx → Trachea
C) Larynx → Trachea → Bronchioles → Nostrils
D) Nostrils → Pharynx → Larynx → Trachea → Alveolus
Answer:
D) Nostrils → Pharynx → Larynx → Trachea → Alveolus

Question 20.
The structure of the respiratory system that filters the air:
A) Pharynx
B) Larynx
C) Nasal cavity
D) Bronchiole
Answer:
C) Nasal cavity

Question 21.
The floor of the chest cavity is :
A) Sternum
B) Spinal cord
C) Ribs
D) Diaphragm
Answer:
D) Diaphragm

Question 22.
Vocal cords are located in…………………..
A) pharynx
B) larynx
C) nasal cavity
D) trachea
Answer:
B) larynx

Question 23.
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

AP 10th Class Biology Bits Chapter 2 Respiration

Question 24.
What happens if moisture is not present in the respiratory path ?
A) Dust particles will not be removed
B) Air reaches the lungs without get moistened during summer
C) Air reaches the lungs without get moistened during winter
D) All the above
Answer:
A) Dust particles will not be removed

Question 25.
From nasal cavity, the air goes into pharynx. After pharynx the track is divided into two passages. Those are ………………… , ……………….
1) Stomach, duodenum
2) Trachea, digestive canal
3) Larynx, epiglottis
A) 1 only
B) 1 and 2
C) 2 only
D) 1 and 3
Answer:
C) 2 only

Question 26.
Due to vibration of vocal cords sounds are produced. These sounds are produced during …………………..
A) Inhalation
B) Expiration
C) Contraction
D) Relaxation
Answer:
B) Expiration

Question 27.
We will find vocal cords in
A) larynx
B) pharynx
C) nasal cavity
D) trachea
Answer:
A) larynx

Question 28.
The structural and functional units of the Lung are……………………
A) alveoli
B) bronchi
C) bronchioles
D) air spaces
Answer:
A) alveoli

Question 29.
Which of the following is correct ?
A) The diaphragm contracts – volume of chest cavity increased
B) The diaphragm contracts – volume of chest cavity decreased
C) The diaphragm expands – volume of chest cavity increased
D) The diaphragm expands – volume of chest cavity decreased
Answer:
A) The diaphragm contracts – volume of chest cavity increased

Question 30.
The membrane that protects the lungs:
A) Meninges
B) Pericardium
C) Pleura
D) B and C
Answer:
C) Pleura

AP 10th Class Biology Bits Chapter 2 Respiration

Question 31.
“For the survival of mankind expiration and inspiration are must” It is …………………..
A) true
B) false
C) incorrect Explanation
D) may be or may not be
Answer:
A) true

Question 32.
When pressure is exerted on lungs, the following one occurs.
A) inspiration
B) chest cavity increases
C) expiration
D) chest cavity decreases
Answer:
C) expiration

Question 33.
Which of the following statement correctly describes the lungs ?
A) They are not of same size and are spongy in nature.
B) The right lung is slightly smaller for making space for the heart.
C) A fluid filled between two membranes of lungs called interstitial fluid.
D) They are of uniform size and hard in nature.
Answer:
A) They are not of same size and are spongy in nature.

Question 34.
When air is blown from mouth into a test tube containing lime water, the lime water turned milky. This shows that exhaled air consists of:
A) Oxygen
B) Nitrogen
C) Water vapour
D) Carbon dioxide
Answer:
D) Carbon dioxide

Question 35.
Read the following statement.
i) Chlorophyll pigments influence photosynthesis
ii) Haemoglobin as well as chldrbphyll pigments involve in respiration
A) Statement (i) is wrong; statement (ii) is correct
B) Both statements (i) & (ii) are correct
C) Statement (i) is correct; statement (ii) is wrong
D) Both statements (i) & (ii) are wrong.
Answer:
B) Both statements (i) & (ii) are correct

Question 36.
Arrange the below given stages/events of respiration in the correct order :
i) Transport of air by blood
ii) Exchange of air in tissues
iii) Exchange of gases in lungs
iv) Cellular respiration
A) iii → ii → iv → i
B) iii → i → iv → ii
C) iii → i → ii → iv
D) iii → iv → i → ii
Answer:
C) iii → i → ii → iv

Question 37.
During respiration the composition of this gas remains same.
A) Oxygen
B) CO2
C) Water vapour
D) Nitrogen
Answer:
D) Nitrogen

AP 10th Class Biology Bits Chapter 2 Respiration

Question 38.
Which of the choices below is not a functional process performed by the respiratory system ?
A) Pulmonary ventilation
B) Transport of respiratory gases
C) External respiration .
D) Pulmonary respiration
Answer:
B) Transport of respiratory gases

Question 39.
AP 10th Class Biology Bits Chapter 2 Respiration 2
The correct labelling of P, Q, R and S in the above diagram is:
A) P – Epiglottis, Q – Larynx, R – Trachea, S – Bronchioles
B) P – Larynx, Q – Epiglottis, R – Bronchioles, S – Trachea
C) P – Trachea, Q – Epiglottis, R – Larynx, S – Bronchioles
D) P – Bronchioles, Q – Larynx, R – Trachea , S – Epiglottis
Answer:
A) P – Epiglottis, Q – Larynx, R – Trachea, S – Bronchioles

Question 40.
The correct order of parts in the given flow chart are :
AP 10th Class Biology Bits Chapter 2 Respiration 3
A) 1, 2, 4, 5, 3, 6, 7, 8, 9
B) 1, 4, 2, 5, 3, 6, 7, 8, 9
C) 1, 4, 3, 2, 5, 6, 7, 8, 9
D) 1, 3, 4, 2, 5, 6, 7, 8,9
Answer:
B) 1, 4, 2, 5, 3, 6, 7, 8, 9

Concept – 3 : Cellular Respiration

Question 41.
Assertion : Breathing slows down under resting stage
Reason : Rate of breathing rises on vigorous exercise
A) Both A and R are true
B) ,A is true, R is false
C) A is false, R is true
D) Both A and R are false
Answer:
A) Both A and R are true

Question 42.
After undergoing strenuous exercise ……………… deficiency occurs.
A) Energy
B) Oxygen
C) Mass
D) CO2
Answer:
B) Oxygen

Question 43.
Ethanol : anaerobic respiration : : CO2 + H2O : ……………………..
A) aerobic respiration
B) anaerobic respiration
C) fermentation
D) sublimation
Answer:
A) aerobic respiration

Question 44.
Gaseous exchange takes place within the lungs by a process called:
A) osmosis
B) diffusion
C) both A and B
D) none of these
Answer:
C) both A and B

AP 10th Class Biology Bits Chapter 2 Respiration

Question 45.
Carbon dioxide is usually transported in the blood as :
A) bicarbonate
B) carbonate
Q calcium carbonate
D) sodium
Answer:
A) bicarbonate

Question 46.
Cellular respiration in prokaryotic cells occurs within :
A) cytoplasm
B) nucleus
C) mitochondria
D) both A and B
Answer:
D) both A and B

Question 47.
Haemoglobin has the binding capacity with ……………….
A) O2
B) SO2
C) NO2
D) PO4
Answer:
A) O2

Question 48.
Agents present in exhaled air:
A) CO2, O2
B) O2, water vapour
C) CO2, water vapour
D) Water vapour
Answer:
C) CO2, water vapour

Question 49.

Column – I Column – II
i) Pyruvate p) Alveoli
ii) ATP q) 7200, calories
iii) Gaseous exchange r) 3 carbon compound

A) i – p, ii – q, iii – r
B) i – q, ii – r, iii – p
C) i – r, ii – p, iii – q
D) i – r, ii – q, iii – p
Answer:
D) i – r, ii – q, iii – p

Question 50.
Energy currency is the name of this and it is formed due to
A) ATP – Digestion
B) NADP – Respiration
C) ATP – Glycolysis
D) NADP – Glycolysis
Answer:
C) ATP – Glycolysis

Question 51.
In ATP, the energy is stored in the form of these bonds.
A) Oxide
B) Carbonate
C) Phosphate
D) Bicarbonate
Answer:
C) Phosphate

AP 10th Class Biology Bits Chapter 2 Respiration

Question 52.
The energy value of a single ATP molecule is…………………..
A) 2700 calories
B) 7200 calories
C) 32 calories
D) 52 calories
Answer:
B) 7200 calories

Question 53.
Reason for muscular pain is …………………
A) accumulation of glucose
B) increase of oxygen in muscles
C) accumulation of lactic acid
D) accumulation of ethanol
Answer:
C) accumulation of lactic acid

Question 54.
Find the reason for slow breathing in walking compared to running fast
A) Variation in inhalation and exhalation .
B) Supply of O2 and removal of CO2
C) Tension and stress at rest and running
D) Variation in contraction and relaxation of lungs at rest and run fast
Answer:
D) Variation in contraction and relaxation of lungs at rest and run fast

Question 55.
Anaerobic respiration is seen in
A) Prokaryotes
B) Eukaryotes
C) Organelle
D) Chest
Answer:
A) Prokaryotes

Question 56.
Mode of respiration in Eukaryotes ……………….
A) Anaerobic respiration
B) Aerobic respiration
C) Pulmonary respiration
D) Buccal cavity respiration
Answer:
B) Aerobic respiration

Question 57.
Fermentation is …………………
A) Aerobic respiration
B) Cellular respiration
C) External respiration
D) Anaerobic respiration
Answer:
D) Anaerobic respiration

Question 58.
Strenuous exercise produces ……………….. in muscles.
A) Pyruvate
B) Lactic acid
C) Ethanol
D) Energy
Answer:
B) Lactic acid

AP 10th Class Biology Bits Chapter 2 Respiration

Question 59.
Glucose → Pyruvate → Lactic acid + Less energy
A) Mitochondria
B) Muscles
C) Yeast
D) Fungi
Answer:
B) Muscles

Question 60.
Glucose → Pyruvate → Ethanol + Less energy
A) Virus
B) Muscles
C) Yeast
D) B & C
Answer:
C) Yeast

Question 61.
Strenuous exercise causes
A) CO2 consumption
B) oxygen debt
C) CO2 debt
D) more active
Answer:
B) oxygen debt

Question 62.
During jogging body temperature rises. Why?
A) Due to over sweating
B) Temperature increases due to over exercise
C) To regain strength with CO2
D) Over consumption and loss of glucose in the body
Answer:
D) Over consumption and loss of glucose in the body

Question 63.
You have long breath when you are tired. Why ?
A) To reduce tiredness
B) To increase tiredness
C) To regain glucose
D) To repay O2
Answer:
D) To repay O2

Question 64.
Energy is stored in
A) nucleus
B) mitochondria
C) ribosomes
D) cell wall
Answer:
B) mitochondria

Question 65.
A person is hiking on a mountain. His breathing rate is increasing while he is walking up hill. The reason is …………………
1) oxygen levels are generally less as we move uphill
2) our muscles have to use more oxygen while walking up
3) oxygen levels are more on mountains
4) our muscles have to use less oxygen
A) 1 only
B) 1 and 2
C) 1 and 4
D) 4 only
Answer:
B) 1 and 2

AP 10th Class Biology Bits Chapter 2 Respiration

Question 66.
The percentage of carbon dioxide in exhaled air is ……………………..
A) 44
B) 4.4
C) 0.4
D) 0.04
Answer:
B) 4.4

Question 67.
Muscular pain is caused due to accumulation of………………….
A) Lactic acid
B) Citric acid
C) Tartaric acid
D) Nitric acid
Answer:
A) Lactic acid

Question 68.
The end products of aerobic respiration are ………………….
A) Lactic acid + Energy
B) Ethanol + CO2 + Energy
C) Lactic acid + Ethanol + Energy
D) CO2 + Water + Energy
Answer:
D) CO2 + Water + Energy

Question 69.
The percentage of oxygen in inhaled air is
A) 13%
B) 16%
C) 21%
D) 18%
Answer:
C) 21%

Question 70.
Find out the labelled part of mitochondria indicated with (?) mark.
AP 10th Class Biology Bits Chapter 2 Respiration 4
A) Inner membrane
B) Cristae
C) Lamellae
D) Thylakoid
Answer:
B) Cristae

Question 71.
C6H12O6 + 6O2 → 6H2O + Energy Fill up the following equation.
A) 6CO2
B) C6H12O6
C) 6O2
D) 12CO2
Answer:
A) 6CO2

Question 72.
The following flow chart describes the break down of glucose by various pathways.
AP 10th Class Biology Bits Chapter 2 Respiration 5
What are the products formed at the places marked 1, 2 and 3 respectively ?
A) 1 – ethanol + CO2 + energy, 2 – lactic acid + energy, 3 – CO2 + energy
B) 1 – ethanol + CO2 + energy, 2 – lactic acid + energy, 3 – CO2 + H2O + energy
C) 1 – ethanol + energy, 2 – lactic acid + CO2, 3 – CO2 + H2O + energy
D) 1 – CO2 + energy, 2 – lactic acid only, 3 – H2O + energy
Answer:
B) 1 – ethanol + CO2 + energy, 2 – lactic acid + energy, 3 – CO2 + H2O + energy

AP 10th Class Biology Bits Chapter 2 Respiration

Concept – 4 : Fermentation

Question 73.
What deficiency takes place when vigorous exercise or work is done ?
A) CO2 deficiency
B) Oxygen deficiency
C) N2 deficiency .
D) Lactic acid deficiency
Answer:
B) Oxygen deficiency

Question 74.
Four students a, b, c and d, made the records given below.
“Observing changes during combustion of sugar”.

Student X Y
a

b

c

d

Glucose

Alcohol

Lime water

Glucose

Alcohol

Glucose

Iodine

Lime water

AP 10th Class Biology Bits Chapter 2 Respiration 6
Find out the student who noted correctly.
A) a
B) a, b
C) c ,a, d
D) d
Answer:
D) d

Question 75.
Vasu said that Ethanol is released in fermentation. Bose said that fermentation is the process of anaerobic respiration.
A) Both are wrong
B) Both are correct
C) Vasu is correct
D) Bose is correct
Answer:
B) Both are correct

Question 76
……………….. is formed in the mixture of glucose and yeast in the absence of O2.
A) Special smell
B) Ethane
C) Methane
D) Ethanol with specific smell
Answer:
D) Ethanol with specific smell

Question 77.
Find the odd one out.
A) Ethanol
B) Lactic acid
C) Yeast
D) Saliva
Answer:
D) Saliva

Question 78.
The solution used to identify the presence of oxygen in Anaerobic respiration experiment is
A) Diazene green
B) Potassium hydroxide
C) Betadin
D) the rod containing Sulphur
Answer:
A) Diazene green

Question 79.
Find the correct statement.
A) When we send yeast cells into sugar solution ethanol is formed.
B) When we send yeast cells into sugar solution in absence of O2 ethanol is formed.
C) Yeast + sugar solution + lactic acid results in the formation of ethanol.
D) When we send yeast into sugar solution with CO2 ethanol is formed.
Answer:
B) When we send yeast cells into sugar solution in absence of O2 ethanol is formed.

AP 10th Class Biology Bits Chapter 2 Respiration

Question 80.
The below given experimental set up indicates a phenomenon that helps us to:
AP 10th Class Biology Bits Chapter 2 Respiration 7
A) test the production of CO2 and heat under aerobic respiration
B) test the production of CO2 under anaerobic respiration
C) test the production of heat under anaerobic respiration
D) both B and C
Answer:
D) both B and C

Question 81.
In the anaerobic respiration experiment, 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) Orange
Answer:
B) Pink

Question 82.
To remove dissolved oxygen from glucose solution by heating-the time taken ……………….
A) an horn
B) a minute
C) a second
D) two hours
Answer:
B) a minute

Question 83.
Ethanol can be separated from sugar – yeast solution by this method.
A) Freezing
B) Filtration
C) Fractional distillation
D) Cooling
Answer:
C) Fractional distillation

Question 84.
Identify the kind of respiration with the following end products.
i) C2H5OH and CO2
ii) CO2 and H2O
iii) Lactic acid
A) i – Alcoholic fermentation, ii – Lactic acid fermentation, iii – Aerobic respiration
B) i -Aerobic respiration, ii – Alcoholic fermentation, iii-Lactic acid fermentation
C) i – Alcoholic fermentation, ii – Aerobic respiration, iii – Lactic acid fermentation
D) All the above
Answer:
A) i – Alcoholic fermentation, ii – Lactic acid fermentation, iii – Aerobic respiration

Concept – 5 : Respiration Versus Combustion :

Question 85.
Name the person who told “Respiration is similar to combustion”
1. Robinson
2. Lavoisier
A) 1
B) 2
C) 1 & 2
D) Both are false
Answer:
C) 1 & 2

Question 86.
Combustion of glucose gives
A) CO2, H2O, energy
B) C6H12O6, O2 energy
C) CO2, O2, water
D) CO2, C6H12O6, energy
Answer:
A) CO2, H2O, energy

Question 87.
Practising yoga asanas help us
A) to get more gases
B) to get more O2
C) to get more CO2
D) to get more N2
Answer:
B) to get more O2

AP 10th Class Biology Bits Chapter 2 Respiration

Question 88.
Living animals and plants usually produce energy in the form of ………………….
A) gases
B) water
C) solid
D) heat
Answer:
D) heat

Question 89.
To liberate energy glucose must be ……………………. in the laboratory.
A) cooled at low temperature
B) burnt at high temperature
C) burnt at low temperature
D) B or C
Answer:
B) burnt at high temperature

Concept – 6 Evolution of Gaseous Exchange in Animals

Question 90.
Match the following.

1. Grass hopper a) Gills
2. Prawn b) Trachea
3. Frog c) Skin

A) 1 – c, 2 – b, 3 – a
B) 1 – a, 2 – c, 3 – b
C) 1 – b, 2 – c, 3 – a
D) 1 – b, 2 – a, 3 – c
Answer:
D) 1 – b, 2 – a, 3 – c

Question 91.
Find out the wrong pair.
A) Man – Lungs
B) Fish – Gills
C) Frog – Gills
D) Hydra – Body cavity
Answer:
C) Frog – Gills

Question 92.
Find out the organism which respire through skin, lungs ………………..
A) Fish
B) Earth worm
C) Snake
D) Frog
Answer:
D) Frog

Question 93.
Crocodiles and dolphins respire with
A) lungs
B) skin
C) gills
D) tuber
Answer:
A) lungs

Question 94.
Fish in the aquarium respires through
A) gills
B) lungs
C) air tubes
D) skin
Answer:
A) gills

Question 95.
Respiratory organs in insects
A) gills
B) trachea
C) skin
D) lungs
Answer:
B) trachea

AP 10th Class Biology Bits Chapter 2 Respiration

Question 96.
Respiratory organs in earthworm
A) skin
B) trachea
C) lungs
D) gills
Answer:
A) skin

Question 97.
Respiratory organs in man
A) skin
B) trachea
C) lungs
D) gills
Answer:
C) lungs

Question 98.
Respiration in Amoeba occurs by
A) trachea
B) diffusion
C) gills
D) lungs
Answer:
B) diffusion

Question 99.
Skin has no respiratory role in this organism. Identify it.
A) Earthworm
B) Lizard
C) Frog
D) Salamander
Answer:
B) Lizard

Question 100.
Branchial respiration is found in IAS
A) Cockroach
B) Fish
C) Frog
D) Birds
Answer:
B) Fish

Concept – 7 : Respiration in Stomata

Question 101.
The reason for entry of air into stomata.
A) Entry of more CO2
B) More density outside of stomata
C) Density of more CO2
D) Density of more O2
Answer:
D) Density of more O2

Question 102.
What will happen to plants if rate of respiration is more than photosyn¬thesis?
A) Live long but can’t store carbohydrates
B) Plant dies
C) Plant grows rapidly
D) Growth reduces due to hungry
Answer:
A) Live long but can’t store carbohydrates

AP 10th Class Biology Bits Chapter 2 Respiration

Question 103.
These plants grow in Eustaries and respire with roots
A) Seedless plants
B) Mangrove plants
C) Gliricidia plants
D) Monocots
Answer:
B) Mangrove plants

Question 104.
The parts which are present on the surface of roots to respire.
A) Aerial roots
B) Lenticels
C) Air spaces
D) Stomata
Answer:
A) Aerial roots

Question 105.
Vamsi conducted the experiment shown in the diagram. The temperature in thermometer rises.
AP 10th Class Biology Bits Chapter 2 Respiration 8
Aim of this experiment is ………………….
A) CO2 is evolved during germination.
B) Heat is evolved during respiration.
C) Alcohol is evolved during respiration.
D) CO2 is evolved dining respiration.
Answer:
B) Heat is evolved during respiration.

Question 106.
Observe the following a and b statements.
a) Plants which grow in moist and wet soil do not grow properly.
b) Mangrove plants respire with aerial roots formed above the soil.
A) a and b both are true
B) a is true, b is false
C) a is false b is true
D) a and b both are false
Answer:
A) a and b both are true

Question 107.
The rate of transpiration is more in the following days of atmosphere.
A) Cold, humid
B) Hot, humid, dry
C) Hot, humid
D) Hot, dry, air
Answer:
D) Hot, dry, air

Question 108.
Identify the part which is present in the plants for respiration.
A) Stomata
B) Lenticels
C) Aerial roots
D) All
Answer:
D) All

Question 109.
What is the purpose of ‘p’ in the given experiment ?
AP 10th Class Biology Bits Chapter 2 Respiration 9
A) To test the presence of oxygen
B) To test the evolution of carbon dioxide
C) To test the evolution of heat
D) To test the anabolic activity
Answer:
B) To test the evolution of carbon dioxide

AP 10th Class Biology Bits Chapter 2 Respiration

Question 110.
Plants that possess pneumatophores or respiratory roots are………………………..
A) Mangrove plants
B) Xerophytic plants
C) Hydrophytic plants
D) Mesophytic plants
Answer:
A) Mangrove plants

Question 111.
An experimental setup is given here to show CO2 is evolved in respiration. What do X and Y represent ?
AP 10th Class Biology Bits Chapter 2 Respiration 10
A) X – Sprouted seeds, Y – Lime water
B) X – Dry seeds, Y – Lime water
C) X – Dry seeds, Y – KOH solution
D) X – Sprouted seeds Y – KOH solution
Answer:
A) X – Sprouted seeds, Y – Lime water

Concept – 8 : Photosynthesis versus Respiration

Question 112.
Respiration is a catabolic process because of
A) breakdown of complex food molecules
B) conversion of light energy
C) synthesis of chemical energy
D) energy storage
Answer:
A) breakdown of complex food molecules

Question 113.
(CH2O)n + O2 → CO2 + H2O + Energy
What does this equation indicate?
A) Photosynthesis
B) Excretion
C) Respiration
D) Fermentation
Answer:
C) Respiration

Question 114.
Factors influencing rate of respiration
A) O2
B) Temperature
C) Light
D) A & B
Answer:
D) A & B

Question 115.
The following process is essential for plant’s metabolism
A) Photosynthesis
B) Respiration
C) Excretion
D) A & B
Answer:
D) A & B

Question 116.
The only process which gives energy for all metabolic activities ………………….
A) Photosynthesis
B) Cellular respiration
C) Combustion
D) Fermentation
Answer:
B) Cellular respiration

AP 10th Class Biology Bits Chapter 2 Respiration

Question 117.
Observe the following equation and find out the correct answer for “?”.
(CH2O)n + O2 → CO2 + H2O + ?
A) Energy is not released
B) Energy is not oxidised
C) More energy is released
D) Ethyl Alcohol is formed with small amount energy
Answer:
C) More energy is released

Question 118.
In cells ………………… will be utilised and CO2, water, energy will be released.
A) CO2
B) Nitrogen
C) Oxygen
D) Hydrogen
Answer:
C) Oxygen

Question 119.
Anaerobic respiration is seen in
A) Prokaryotes
B) Eukaryotes
C) Organelle
D) Chest
Answer:
A) Prokaryotes

Question 120.
Photosynthesis and respiration both are called ………………….
A) Anabolic activities
B) Catabolic activities
C) Combustion activities
D) Metabolic activities
Answer:
D) Metabolic activities

Question 121.
Respiration in plants is different from animals in such a way that :
A) all the parts of plant perform respiration individually
B) there is a little transport of gases from one part of the plant to the other
C) the respiration in plants occurs’at a slower rate
D) all the above
Answer:
D) all the above

Question 122.
Find the correct pair:
A) Photosynthesis – Anabolic process
B) Respiration – Catabolic process
C) Pyruvate – 6 carbon compound
D) Both A and B
Answer:
D) Both A and B

AP 10th Class Biology Bits Chapter 2 Respiration

Question 123.
Choose the correct one :
AP 10th Class Biology Bits Chapter 2 Respiration 11
b) C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy
A) (a) is photosynthesis (b) is respiration
B) (b) is respiration (a) is photosynthesis
C) (a) & (b) both photosynthesis
D) (a) & (b) both respiration
Answer:
A) (a) is photosynthesis (b) is respiration