Question # 1

Which of the following cells is most abundant in the blood?A

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Red blood cells

White blood cells

Platelets

None of these

................ is the first organ which comes out of seed.

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Stem

Root

Leaf

All

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

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Arteries

Veins

Capillaries

All of the above

ABO blood group system was discovered in 1901 by .................. .

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Camillo

Karl land Steiner

Robert Hooke

Mathias Schleiden

The rate of transpiration is increased when:

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Low light

Temperature decrease

Humidity increased

None of these

The percentage of inorganic salts and in the plasma is:

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0.6

0.7

0.8

0.9

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

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One

Two

Three

fOUR

According to pressure flow mechanism which is the actual force behind the movement of food in phloem?

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Drop in the pressure at the sink end

Gain of water at the sink end

Osmotic pressure

All 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

During rain the rate of transpiration is ............. .

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Minimum

Maximum

Both

None

Which of the following structures are not cells.

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Lymophocytes

Eosinophils

Monocytes

Platelets

What happens when a mismatched blood group is injected in recipient?

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Antibodies of the recipient's blood destroy donor's RBCs

Antibodies of the donor's blood breakdown recipient's RBCs

Both of these can happen

None of these and such transfusion can be safe

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

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Plasma

Lymph

Serum

Puss

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