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Question (31)

QN001541

During gas exchange, oxygen passes from the alveoli into the

(A) stomach
(B) intestine
(C) blood
(D) skin

Correct Answer: C

Explanation:

Oxygen enters the blood from alveoli.

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Question (32)

QN001542

Blood brings which gas from body parts to the alveoli?

(A) Oxygen
(B) Carbon dioxide
(C) Nitrogen
(D) Hydrogen

Correct Answer: B

Explanation:

Blood carries carbon dioxide to alveoli.

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Question (33)

QN001543

Which activity would most likely increase breathing rate?

(A) Sleeping
(B) Sitting quietly
(C) Running fast
(D) Reading silently

Correct Answer: C

Explanation:

Physical activity increases breathing rate.

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Question (34)

QN001544

A student starts breathing faster after exercise because the body needs

(A) less oxygen
(B) more carbon dioxide
(C) more oxygen for energy release
(D) less blood circulation

Correct Answer: C

Explanation:

Exercise increases oxygen demand.

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Question (35)

QN001545

Which statement correctly differentiates breathing and respiration?

(A) Both are chemical processes
(B) Breathing occurs only in lungs while respiration releases energy
(C) Respiration only moves air
(D) Breathing releases energy directly

Correct Answer: B

Explanation:

Respiration releases energy, breathing exchanges air.

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Question (36)

QN001546

Smoking mainly damages the

(A) stomach
(B) kidneys
(C) lungs
(D) liver

Correct Answer: C

Explanation:

Smoking harms the lungs.

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Question (37)

QN001547

Passive smoking means

(A) smoking while sleeping
(B) inhaling smoke released by others
(C) breathing through the mouth
(D) smoking without fire

Correct Answer: B

Explanation:

Passive smoking occurs when non-smokers inhale smoke.

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Question (38)

QN001548

Which disease mentioned in the chapter affected the respiratory system during the pandemic?

(A) Malaria
(B) Dengue
(C) COVID-19
(D) Typhoid

Correct Answer: C

Explanation:

COVID-19 affected the respiratory system.

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Question (39)

QN001549

Pranayama is mainly associated with

(A) digestion exercises
(B) breathing exercises
(C) muscle building
(D) blood testing

Correct Answer: B

Explanation:

Pranayama involves breathing practices.

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Question (40)

QN001550

Tummo breathing is practised in

(A) Kerala
(B) Rajasthan
(C) Ladakh
(D) Goa

Correct Answer: C

Explanation:

Tummo breathing is practised in Ladakh.

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Question (31)

During gas exchange, oxygen passes from the alveoli into the

Explanation:

Link:

Question (32)

Blood brings which gas from body parts to the alveoli?

Explanation:

Link:

Question (33)

Which activity would most likely increase breathing rate?

Explanation:

Link:

Question (34)

A student starts breathing faster after exercise because the body needs

Explanation:

Link:

Question (35)

Which statement correctly differentiates breathing and respiration?

Explanation:

Link:

Question (36)

Smoking mainly damages the

Explanation:

Link:

Question (37)

Passive smoking means

Explanation:

Link:

Question (38)

Which disease mentioned in the chapter affected the respiratory system during the pandemic?

Explanation:

Link:

Question (39)

Pranayama is mainly associated with

Explanation:

Link:

Question (40)

Tummo breathing is practised in

Explanation:

Link:

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