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Category: Biology MCQs Class 11

Biology solved multiple choice questions (MCQs) for class 11 or first year with answers.

Choose the correct spelling:

(A) Chendalier
(B) Chandelier
(C) Chandalier
(D) Chandaliar

Answer: (B) Chandelier

A hormone that stimulates gastric gland to secrete pepsinogen is:

(A) secretin
(B) gastrin
(C) cholecystokinin
(D) intrinsic factor

Answer: (B) gastrin

Which of the following is NOT the effect of Cytokinin on floral bud?

A) promote bud initiation
(B) promote lateral bud growth
(C) break bud dormancy
(D) promote leaf growth

Answer: 

Which of the following is true about chlorophyll?

(A) It contains Mg in porphyrin ring.
(B) It is found mostly in stroma.
(C) It dissolves in water.
(D) It is the only pigment found in most plants.

Answer: 

The lub or first heart sound is produced at?

(A) the begning of systole
(B) the end of systole
(C) the begning of diastole
(D) the end of diastole

Answer: (A) the begning of systole

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