Question # 1

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

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Transpiration

Transcription

Translation

Allof above

Which of the followings are not Gramulocytes?

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Neutrophils

Eosinophils

Monocytes

Basophils

Valves to prevent the backflow of blood are found in the:

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Arteries

Veins

Capillaries

All of the above

When do the atria contract?

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Before diastole

After systole

During diastole

During systole

A cubic millimeter of blood contain about ............. million RBCs.

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5

10

15

20

Exchange of materials between blood and surrounding tissues occurs in:

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Arteries

Veins

Capillaries

All of these

Atherosclerosis is caused due to ............. .

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Hypertension

Smoking

Diabetes

All of above

When fibrinogen makes blood clot,it separates from blood and the remainder is called:

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Plasma

Lymph

Serum

Puss

Plasma contains .................. % water.

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10%

7%

90%

2%

ABO blood group system was discovered by:

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T.H Morgan

Hans krebs

Winhelm kuhne

Karl landsteiner

............. is the movement of molecule from a region of higher concentration to a region of lower concentration.

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Osmosis

Diffusion

Both

None

Which of these are responsible for blood clotting?

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Platelets

Erythrocytes

Neutrophils

Baseophils

The death of the heart tissue is called:

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Arterioclerosis

Atherosclerosis

Myocardial infarction

Thalassemia

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Biology 9th Class English Medium Chapter 9 Online Test MCQs With Answers

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