Question # 1

Green leaves in which glucose is prepared called .......... .

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Source of assimilates

Sink of assimilates

Both

None

Leukemia is a disease in which leucocytes increase ...................... .

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Normally

Abnormally

Both

None

Which of the followings in not true about the opening and Closing of Stomata?

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Light helps in the opening and closing of stomata

K⁺ ions are responsible for the opening and closing of stomata

The osmosis of water is responsible for the opening and closing of stomata

None for these

Which of the followings are not Gramulocytes?

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Neutrophils

Eosinophils

Monocytes

Basophils

Which of the following protein takes in part in blood clotting:

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Albumin

Prothrombin

Fibrinogen

Fibrin

Capillaries are ............ micrometer in diameter.

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7-8 micrometer

8-10 micrometer

8-14 micrometer

7-10 micrometer

Plants form beneficial relationships with soil bacteria fungi in order to:

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Avoid diseases

Absorption of minerals

Transpire more water

All of these

The grater the no. of stomata on leaf , the ............. would be transpiration.

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Higher

Lower

Remain constant

None

The rate of transpiration is increased when:

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Low light

Temperature decrease

Humidity increased

None of these

Which of the following proteins is not present in the plasma of the blood?

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Immunoglobulin or antibodies

Prothrombin

Haemoglobin

Fibrenogen

Which of the following blood vessels have oxygenated blood?

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Pulmonary artery

Pulmonary vein

Superior vena cave

Inferior vena cave

The exchange of materials between the blood and the surrounding tissues occurs in:

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Arteries

Veins

Capillaries

All of the above

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