Question # 1

The heart of the fist is single circuit and the blood flows in

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Two direction

One direction

One and two direction

Reverse direction

All are made up of cartilage except

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Trachea

Bronchiole

Larynx

Bronchi

How much air can lungs when they are fully inflated

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5 liters

4 liters

3.5 liters

4.5 liters

Emphesema is breakdown of

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Muscles

Capillaries

Alveoli

None of these

Why hemoglobin is 98% saturated, the oxygen content per 100 ml of blood is.

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19.6 ml

18.6 ml

17.6 ml

16.6 ml

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

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Respiration

External respiration

Cellular respiration

Anaerobic respiration

Asthma is associated with severe paroxysm of difficult.

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Sleeping

Walking

spoking

Breathing

Lungs of birds have thin walled ducts called.

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Alveoli

Trachea

Bronchi

Parabronchi

During breathing no stale of air remains in the lungs of.

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Mammals

Amphibian

Birds

Sarracenia

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

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

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2

8

10

12

In the peroxisomes the glycolate is converted into

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Serine

Ethanolamine

Glycine

CO₂

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Biology Fsc Part 1 Chapter 13 Online Test MCQs With Answers

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