Question # 1

Number of air sacs in birds is

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6

7

8

9

Myoglobin occurs in

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Red blood cells

White blood cells

Plasma

Muscle fibres

How much air can lungs when they are fully inflated

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5 liters

4 liters

3.5 liters

4.5 liters

Emphysema is the breakdown of

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Trachea

Bronchi

Alveoli

Bronchioles

The respiratory system is most efficient in ______

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Man

Bird

Fish

Snake

100 ml of arterial blood of human being contains CO2

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50 ml

54 ml

56 ml

58 ml

Lungs of birds have thin walled ducts called.

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Alveoli

Trachea

Bronchi

Parabronchi

The exchange of gases between the organism and its environment is called.

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Respiration

External respiration

Cellular respiration

Anaerobic respiration

During photorespiration, glycine is converted into serine in the

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Golgi bodies

Chloroplast

Mitochondria

Ribosome

Water is more viscous than air.

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10 times

20 times

50 times

100 times

Spiracles are found in

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Fish

Cockroach

Leech

Earth worm

Pleura is double layered thin membrane that covers.

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Heart

Liver

Lungs

Kidneys

How much air lungs can hold when they are futy inflated.

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5 liters

4.5 liters

4 liters

3.5 liters

Blood is not involved in transport of gasses in.

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Frog

Man

Earthworm

Cockroach

Plasma proteins carry about____________% CO2 from body fluids to lungs.

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1%

2%

4%

5%

Heart burn is a painful sensation in the

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Stomach

Small intestine

Chest cavity

Pharynx

Lungs are covered by double layered thin membranous sacs called.

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Pleura

Larynx

Air sacs

Diaphragm

Respiratory organs in fish are

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Lungs

Gills

Skin

Fins

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Biology Fsc Part 1 Chapter 13 Online Test MCQs With Answers

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