Biology - Mock Test 233

Question 2321

Cooley's anemia is another name used for?

A) Leucemia B) Thalassaemia C) Sickle cell anemia D) None of these

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Question 2322

Which of the following are proteins in nature?

A) Antibodies. B) Interferons C) Antitoxins D) All of these

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Question 2323

___ give rise to macrophages, which destroy larger particles by phagocytosis?

A) Nautrophils B) Basophila C) Monocyte D) Lymphocyte

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Question 2324

95% of the cytoplasm ofred blood cells is the?

A) Antibodies B) Haemoglobin C) Enzymes D) Proteins

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Question 2325

It has been estimated that in a normal person plasma constitutes about ____ by vulume of blood?

A) 35% B) 45% C) 55% D) 75%

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Question 2326

Single circuit heart is found in?

A) Fishes B) Amphibians C) Reptiles D) Mammals

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Question 2327

Which of the following is true about hearts of earthworm?

A) There are 5-7 pairs of heart. B) They are present between 1-7th segments. C) They are present lateral to the oesophagus. D) They pump blood from ventral to dorsal vessel.

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Question 2328

Open circulatory system can contain?

A) Red Blood Cells B) White Blood Cells C) Haemoglobin D) All of these

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Question 2329

Addition of salts and other solutes from other cells into xylem sap, _____ the water potential of the xylem sap?

A) Increases. B) Lowers. C) Doesn't effect. D) Maintains.

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Question 2330

A pressure created by active secretion of salts and other solutes from other cells into xylem sap is called?

A) Transpiration pull B) Root pressure C) Osmotic pressure. D) None of these

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