Biology - Mock Test 288

Question 2871

If a respiratory surface dries out, gas exchange will?

A) Increase B) Decrease C) Stop D) Not be affected

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Question 2872

Which of the following is the part of kidney?

A) Pelvis B) Ileum C) Somniferous tubules D) Cystic duct

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Question 2873

About 30% of CO2 is transported as?

A) Hacarbamino compounds B) Bicarbonates of Na and K C) Carboxy hemoglobin D) Oxyhemoglobin

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Question 2874

In man percentage of CO2 transported as bicarbonates is?

A) 5% to 10% B) 70% to 75% C) 90% to 95% D) 50% to 65%

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Question 2875

Kidney of vertebrates resembles with contractile vacuole of protozoan in?

A) Expelling out glucose B) Expelling out urea and uric acid C) Expel1ing out excess of water D) Expelling out salts

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Question 2876

Carbon monoxide has greater affinity for hemoglobin as compare to oxygen?

A) 1000 times B) 200 times C) 20 times D) 2 times

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Question 2877

Oxygen is transported in blood mainly by?

A) Leucocytes B) Erythrocytes C) Thromobocytes D) Blood plasma

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Question 2878

In man, expired air contains oxygen about?

A) 4% B) 10% C) 16% D) 20%

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Question 2879

The conversion of protein waste, the ammonia into urea occurs mainly in?

A) kidney B) Lungs C) Liver D) Intestine

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Question 2880

During inspiration, as a result of contraction of muscles attached to it, the diaphragm?

A) becomes dome shaped B) Flattens C) Rotates D) Flattens and rotates

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