Biology - Mock Test 62

Question 611

Chloroplast splits water molecules to release oxygen and add hydrogen to carbon atoms for formation of

A) Glucose B) Starch C) water D) sugar

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Question 612

Photosynthesis increases concentration of oxygen in air, which is necessary for all

A) living organism B) fossils C) birds only D) animals

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Question 613

Light is absorbed by some substances, these substances are known as?

A) pigment B) surface C) vein D) Salk

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Question 614

Artocarpus integra is the scientific name of _______

A) Guava B) Pineapple C) Silver Oak D) Jack fruit

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Question 615

_______is a strong drug that doctors give to people to make them calm or help them sleep

A) Barbiturate B) Antidepressant C) Antihistamine D) Beta-Blocker

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Question 616

Muscles get tired when there is shortfall of _________

A) Lactic acid B) Na+ ions C) ATP D) Sulphates

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Question 617

Which is the phagocytic structure of blood ?

A) Eosinophil B) Basophil C) Platelet D) Monocyte

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Question 618

Which is false?

A) RBCs are also called leucocytes B) White blood corpuscles are part of body`s defence mechanism C) Platelets are also called thrombocytes D) Oxygen is carried in blood after combining with haemoglobin

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Question 619

Which is correct about leucocytes?

A) They are red coloured B) They can cross capillaries C) They are enucleate D) Decrease in their number causes Leukemia

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Question 620

Which has the thickest walls ?

A) Left ventricle B) Right ventricle C) Left auricle D) Right auricle

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