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Human Physiology-Breathing and Respiration [AIIMS (All India Institute of Medical Sciences) Biology]: Questions 1 - 4 of 13

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Question 1

Question MCQ▾

The exchange of gases in the alveoli of the lungs takes place by

Choices

Choice (4)Response

a.

Simple diffusion

b.

Osmosis

c.

Active transport

d.

Passive transport

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Question 2

Question MCQ▾

Oxyhemoglobin is an unstable compound because

Choices

Choice (4)Response

a.

One molecule of hemoglobin combines with four molecules of oxygen.

b.

There is a chemical bounding between oxygen and hemoglobin.

c.

Hemoglobin is a complex pigmented protein.

d.

There is a physical bounding between oxygen and hemoglobin.

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Question 3

Question MCQ▾

In man and mammals, air passes from outside into the lungs through

Choices

Choice (4)Response

a.

Nasal cavity, pharynx, larynx, trachea, bronchioles, bronchi, alveoli.

b.

Nasal cavity, larynx, pharynx, trachea, bronchioles, bronchi, alveoli.

c.

Nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, alveoli.

d.

Nasal cavity, larynx, pharynx, trachea, bronchi, alveoli.

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Question 4

Question MCQ▾

During strenuous exercise, which of the following change occurs?

Choices

Choice (4)Response

a.

Glucose is converted into glycogen.

b.

Pyruvic acid is converted into lactic acid.

c.

Starch is converted into glucose.

d.

Glucose is converted into pyruvic acid.

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