NCERT Class 7 Science-Respiration in Organisms[How Do We Breathe?] [NCERT Based General Studies (GS)]: Questions 1 - 5 of 6

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Question 1

Question MCQ▾

Organs involved in breathing are:

Choices

Choice (4)Response

a.

Nose, wind pipe or trachea, bronchi lungs

b.

Nose, Wind pipe, bronchi, lungs

c.

Nose, trachea, bronchi, lungs

d.

Question does not provide sufficient data or is vague

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Question 2

Question MCQ▾

In respiration two steps are involved these are:

Choices

Choice (4)Response

a.

Aerobic and anaerobic respiration

b.

Inhalation and exhalation

c.

Breathing and cellular respiration

d.

None of the above

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Question 3

Question MCQ▾

Sudden involuntary expulsion of air from the nose and mouth due to irritation of one՚s nostrils is called as:

Choices

Choice (4)Response

a.

Exhalation

b.

Inhalation

c.

Sneezing

d.

All of the above

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Question 4

Question MCQ▾

Respiration in human beings involves:

Choices

Choice (4)Response

a.

Body gives out carbon dioxide in exchange of oxygen

b.

Intake of oxygen from the nostrils and sending it to the lungs through the bronchi and trachea

c.

Two steps external respiration and internal respiration

d.

Question does not provide sufficient data or is vague

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Question 5

Question MCQ▾

How diaphragm and rib cage helps in respiration?

Choices

Choice (4)Response

a.

Diaphragm and ribcage helps in respiration by reducing and increasing the pressure inside the chest cavity

b.

Diaphragm and ribcage helps in respiration by decreasing and increasing the space in the chest cavity

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

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