AP 7th Class Science Bits Chapter 11 Respiration in Organisms with Answers

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AP State Syllabus 7th Class Science Bits 11th Lesson Respiration in Organisms with Answers

Choose the correct answer.

Question 1.
The process of breathing in air is called
A) Inspiration
B) Expiration
C) Respiration
D) All the above
Answer:
A) Inspiration

Question 2.
The process of breathing out air is called
A) Respiration
B) Expiration
C) Breathing
D) None
Answer:
B) Expiration

Question 3.
Plants use this gas during respiration
A) Nitrogen
B) Carbondioxide
C) Oxygen
D) All the above
Answer:
C) Oxygen

Question 4.
The process of breathing in and out is called
A) Inspiration
B) Expiration
C) Inspiration and expiration
D) None of these
Answer:
C) Inspiration and expiration

Question 5.
Breathing rate is
A) Number of times we breath per minute
B) Number of times we breath per second
C) Number of times we breath per hour
D) Number of times we breath per 10 minutes
Answer:
A) Number of times we breath per minute

Question 6.
Expiration rate after exercises
A) Increase
B) Decrease
C) Normal
D) Either increse or decrese
Answer:
A) Increase

Question 7.
Human breath is misty during
A) Summer mornings
B) Summer evenings
C) Winter mornings
D) Rainy days
Answer:
C) Winter mornings

Question 8.
Fixed gas is
A) Oxygen
B) Helium
C) Chlorine
D) Carbon dioxide
Answer:
D) Carbon dioxide

Question 9.
Lime stone reacts with acids give
A) Carbon dioxide
B) Oxygen
C) Helium
D) Chlorine
Answer:
A) Carbon dioxide

Question 10.
Fixed gas was named by
A) Joseph Black
B) Von Helmont
C) Joseph Priestley
D) Lavoiser
Answer:
A) Joseph Black

Question 11.
Gases were first identified by
A) Von Helmont
B) Joseph Priestley
C) Joseph Black
D) Lavoiser
Answer:
A) Von Helmont

Question 12.
Oxygen was named by
A) Von Helmont
B) Joseph Priestley
C) Joseph Black
D) Lavoiser
Answer:
D) Lavoiser

Question 13.
He is the first to move the different kinds of air
A) Von Helmont
B) Joseph Priestley
C) Joseph Black
D) Lavoiser
Answer:
B) Joseph Priestley

Question 14.
Gills are the respiratory organs in
A) Cockroach
B) Butterfly
C) Fish
D) Frog
Answer:
C) Fish

Question 15.
Lime water turns into milky white by
A) Oxygen
B) Carbon dioxide
C) Chlorine
D) Hydrogen
Answer:
B) Carbon dioxide

Question 16.
Gills are the respiratory organs in
A) Tadpole larvae
B) Frog
C) Cockroach
D) Butterfly
Answer:
A) Tadpole larvae

Question 17.
Frog respires through ………… in summer and winter.
A) Gills
B) Lungs
C) Skin
D) Trachea
Answer:
C) Skin

Question 18.
Small minute openings on the surface of stem are
A) Stomata
B) Spiracles
C) Lenticels
D) Nostrils
Answer:
C) Lenticels

Question 19.
Small minute openings on either side of cockroach body are
A) Stomata
B) Spiracles
C) Lenticels
D) Nostrils
Answer:
B) Spiracles

Question 20.
Earthworm respires through
A) Skin
B) Trachea
C) Gills
D) Lungs
Answer:
A) Skin

Question 21.
Tracheal respiration is present in
A) Frog
B) Cockroach
C) Fish
D) Earthworm
Answer:
B) Cockroach

Question 22.
What are they doing in this picture?

A) Watching time
B) Counting heart beat
C) Counting breath
D) None of these
Answer:
C) Counting breath

Question 23.
What do you observe in this picture?

A) Frog eating food
B) Frog digestive system
C) Frog respiratory system
D) Frog resproductive system
Answer:
C) Frog respiratory system

Question 24.
Through this picture we can prove that

A) photosynthesis
B) respiration in plants
C) transpiration in plants
D) absorption of roots
Answer:
B) respiration in plants

Question 25.
In this picture what gas the fish inhale?

A) Water
B) Carbondioxide
C) Hydrogen
D) Oxygen
Answer:
D) Oxygen

Question 26.
Name the respiratory parts in this organism.

A) Trache
B) Gills
C) Skin
D) Lungs
Answer:
A) Trache

Question 27.
In the following, one cannot be a respiratory organ.
A) Trachea
B) Lungs
C) Skin
D) Heart
Answer:
D) Heart

Question 28.
What are the parts which helps in respiration of plants?
A) Stomata
B) Lenticles
C) Both A & B
D) Leaves
Answer:
C) Both A & B

Question 29.
Find out the respiratory organ in this organism.

A) Lungs
B) Trachea
C) Gills
D) Skin
Answer:
D) Skin

Question 30.
Which gas is very less quantity in inhaled air?
A) Oxygen
B) Carbondioxide
C) Nitrogen
D) Hydrogen
Answer:
B) Carbondioxide

Question 31.
Exhaled air does not contain the following gas.
A) Oxygen
B) Carbondioxide
C) Nitrogen
D) Hydrogen
Answer:
A) Oxygen

Question 32.
Respiratory organs in frog tadpoles are
A) Lungs
B) Skin
C) Gills
D) Trachea
Answer:
C) Gills

Question 33.
The respiratory organ in frog life history
A) Skin
B) Lungs
C) Gills
D) All of these
Answer:
D) All of these

Question 34.
It is called fixed gas
A) Oxygen
B) Carbondioxide
C) Hydrogen
D) Nitrogen
Answer:
B) Carbondioxide

Question 35.
Gases exchange take place in this process.
A) Breathing
B) Circulation
C) Respiration
D) Digestion
Answer:
C) Respiration

Question 36.
In this experiment what indicator do we added?

A) Phenolphthalein
B) Methyl Orange
C) Methylene Blue
D) Saprahin
Answer:
A) Phenolphthalein

Question 37.
Who done the experiments on mint sprig with burning candle?
A) Von Helmont
B) Joseph Black
C) Joseph Priestley
D) Lavoiser
Answer:
C) Joseph Priestley

Question 38.
Match the following.
1) Fish — a) Skin
2) Frog — b) Gills
3) Cockroach — c) Trachea
A) 1 – a, 2 – b, 3 – c
B) 1 – b, 2 – c, 3 – a
C) 1 – b, 2, a, 3 – c
D) 1 – c, 2 – b, 3 – a
Answer:
C) 1 – b, 2, a, 3 – c

Question 39.
Spiracles are the respiratory organs of ………….
A) Fish
B) Frog
C) Cockroach
D) Leech
Answer:
C) Cockroach