Respiration in Organisms-How Do We Breathe? (CBSE Class-7 Science): Questions 1 - 5 of 6

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Question number: 1

» Respiration in Organisms » How Do We Breathe? » Organs Involved in Breathing

MCQ▾

Question

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

Question number: 2

» Respiration in Organisms » How Do We Breathe? » Mechanism of Breathing

MCQ▾

Question

In respiration two steps are involved these are:

Choices

Choice (4) Response

a.

Inhalation and exhalation

b.

Breathing and cellular respiration

c.

Aerobic and anaerobic respiration

d.

None of the above

Question number: 3

» Respiration in Organisms » How Do We Breathe? » Sneezing

MCQ▾

Question

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

Question number: 4

» Respiration in Organisms » How Do We Breathe? » Human Respiratory System

MCQ▾

Question

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.

None of the above

Question number: 5

» Respiration in Organisms » How Do We Breathe? » Mechanism of Breathing

MCQ▾

Question

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.

None of the above

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