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Biology Fsc Part 1 Chapter 13 Online Test MCQs With Answers

Question # 1

Oxygen content of fresh air are

Choose an answer

200 ml/litre

10 ml/ litre

100 ml / litre

150 ml / litre

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Question # 2

In birds the organ of voice is called.

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Vocal card

Larynx

Syrinx

Parabronchi

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Question # 3

Most elaborate and efficient respiratory system is present in.

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Man

Fish

Bird

Fing

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Question # 4

Walls of the chest cavity are composed of

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Ribs

Intercostal muscle

Ribs and intercostal muscle

Ribs, intercostal muscle and diaphragm

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Question # 5

Blood contains ______ oxygen per 100 ml of blood when haemoglobin is 98% saturated

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19.6 ml

18.6 ml

16.6 ml

17.6 ml

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Question # 6

The number of pairs of spiracles in abdominal segments of cocroach are

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Question # 7

Number of spiracles in cockroach is

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20 pairs

10 pairs

06 pairs

08 pairs

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Question # 8

Tiny thin walled ducts called parabronchi are present in the lungs of.

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Mammals

Reptile

Birds

Amphibians

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Question # 9

During exercise the breathing rate may rise to

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30 times per minute

20 times per minute

25 times per minute

35 times per minute

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Question # 10

Pleura is double layered thin membrane that covers.

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Heart

Liver

Lungs

Kidneys

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Question # 11

How many molecule of oxygen can bind with a molecule of myoglobin.

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Question # 12

Which is correct order of parts of air passage ways in man.

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Nostrils, Nasal cavity, Pharynx, Larynx

Nasal cavity, Nostrils, Pharynx, Larynx

Nasal cavity, Pharynx, Nostrils, Larynx

Nostrils, Pharynx, Larynx, Nasal cavity

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