WBCS Preliminary MCQs on General Science | Biology P10

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Page 10

139991. The digested food is absorbed in

A

Intestine (Large)

B

Colon

C

Stomach

D

Intestine (small)

D

Correct Answer: D. Intestine (small)

251892. Potato is a

A

root

B

fruit

C

tuber

D

bulb

C

Correct Answer: C. tuber

126893. Carcinoma is cancer originating from

A

Muscular tissue

B

Nerve tissue

C

Epithelial tissue

D

Connective tissue

C

Correct Answer: C. Epithelial tissue

138094. Which of the following is not a physical change?

A

Dissolving sugar in tea

B

Buring of wax in a candle

C

Dehydrating milk to get milk powder

D

Sublimation of iodine

B

Correct Answer: B. Buring of wax in a candle

137895. Which of the following is the hardest substance in the human body?

A

Bone

B

Nail

C

Dentine

D

Enamel

D

Correct Answer: D. Enamel

137996. Edible portion of coconut is the

A

Cotyledon

B

Embryo

C

Fruit wall

D

Endosperm

D

Correct Answer: D. Endosperm

144397. The Pyrimidine bases in a DNA are:

A

Cytosine and Guanine

B

Thymine and Cytosine

C

Adenine and Guanine

D

Thymine and Adenine

B

Correct Answer: B. Thymine and Cytosine

128598. Urea is produced in the body of a man in

A

Kidney

B

Hemoglobin

C

Liver

D

Urinary Bladder

C

Correct Answer: C. Liver

139399. Which of the following is the producer in a pond ecosystem?

A

Herbivores

B

Carnivores

C

Phytoplankton

D

Zooplankton

C

Correct Answer: C. Phytoplankton

2502100. The main air pollutant[s] in metropolitan cities is/are

A

O₃

B

CO

C

CO₂, SO₂ and NO₂

D

None

C

Correct Answer: C. CO₂, SO₂ and NO₂

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