Question # 1

The process of gaseous exchange involves.

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Break down of C-H bounds to yield energy.

Physical movements that take air ain and our of body

Getting oxygen from the air and removing carbon dioxide

Transport of oxygen by the blood to different parts of the body.

Amount of nitrogen in expired air is:

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70%

80%

79%

4%

In man the system of gaseous exchange is:

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digestive system

respiratory system

nervous system

excretory system

How many lobs are present in right lung?

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2

3

4

5

Glottis is a narrow opening at the floor of:

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Nasal cavity

Nostril

Pharynx

Antibiotics

The glottis is guarded by a flap of tissue called:

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Trachia

Glottis

Bronchi

Epiglottis

Gaseous Exchange in cow takes in:

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Bronchi

Tranchea

Pharynx

Alveoli

The length of trachea is:

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10 cm

12 cm

22 cm

20 cm

Power of speaking is only gifted to:

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Human being

Monkey

Parrot

Crow

Most of the gaseous exchange in a leaf occurs through.

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Stomata

General surface

Cuticle

lenticels

What percentage of oxygen inhaled form air during breathing?

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21%

22%

23%

24%

Main role to give out air form lungs is;

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Bronchus

Bronchi

Bronchiote

Diaphragm

The length of trachia is __________ cm approximately:

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10

12

14

16

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10th Class Biology Chapter 10 Gases Exchange English Medium KPK Boards Online Mcqs MCQs With Answers

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