Question # 1

The percentage of plasma protein in the blood is:

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4 - 5

5-6

7-8

7-9

Which of the following blood vessels have oxygenated blood?

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Pulmonary artery

Pulmonary vein

Superior vena cave

Inferior vena cave

There is separation of oxygenated and deoxygenated blood in birds and mammals because:

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The ventricles are completely divided

The ventral aorta is divided into aortic and pulmonary trunk.

The aortic arch is divided into two systemic arches.

None of the above

Pulmonary veins originate from .............. .

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Liver

Lungs

Kidney

Intestine

Stomata close when the guard cells:

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Lose water

Gain chloride ions

Become turgid

Gain potassium ions

Which of the following structures are not cells.

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Lymophocytes

Eosinophils

Monocytes

Platelets

When stomatal opening reduce in sixe, the rate of transpiration ............... .

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Transpiration

Transcription

Translation

Allof above

A patient with blood group A can be given the blood of donor who has;

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Blood group A or AB

Blood group A or O

Blood group A only

Blood group O only

Blood is composed of ................. parts.

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One

Two

Three

fOUR

In experiments to show transpiration from lead surfaces cobalt chloride paper changes its colour from:

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Pink to blue

Blue to pink

Pink to colourless

Colourless to pink

Which of the following tissue layer us found in all blood vessels?

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Smooth muscle

Endothelium

Skeletal muscle

Connective tissue

Stomata close when guard cells:

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Loss water

Gain chloride ions

Become turgid

Grain potassium ions

The normal pH of human blood is:

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6.4

7.4

8.4

9.4

Plasma is made up of water and _____________

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Metabolities and wastes

Salts and ions

Proteins

All of the above

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