Quiz on General Science (Biology) For WBCS Prelims Exams P16

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Page 16

1350151. Which one of the following is a viral disease?

A

Encephalitis

B

Oriental sore

C

Trypanosomiasis

D

Giardiasis

A

Correct Answer: A. Encephalitis

1372152. Which one of the following plants keeps its stomata open during the night and closed during the day?

A

Sunflower

B

Fern

C

Water Lily

D

Cactus

D

Correct Answer: D. Cactus

1382153. The presence of pneumatophore (breathing root) is found in

A

Hydrophytic plants

B

Insectivores

C

Mangrove plants

D

Epiphytic plants

C

Correct Answer: C. Mangrove plants

1254154. The disease caused by the deficiency of vitamin B12

A

Normocytic anemia

B

Pernicious anemia

C

Aplastic anemia

D

Sickle cell anemia

B

Correct Answer: B. Pernicious anemia
Explanation:

Pernicious anemia is a disease in red blood cells when the body can't absorb enough vitamin B12.

2524155. Which is not social pollution from the following?

A

Poverty

B

Communal riot

C

Rape

D

Agricultural pollution

D

Correct Answer: D. Agricultural pollution

1308156. Primary and Secondary growth is inhibited by

A

Abscisic acid

B

Cytokinins

C

Auxin

D

Gibberellins

A

Correct Answer: A. Abscisic acid

1412157. Kranz anatomy states that the plant has

A

C2 cycle

B

C3 cycle

C

C4 cycle

D

Both C3 and C4 cycle

C

Correct Answer: C. C4 cycle

2519158. Alexander Fleming discovered

A

penicillin

B

X-ray

C

streptomycin

D

telephone

A

Correct Answer: A. penicillin

1282159. Malaria parasite can best be obtained from the blood of its patient

A

When the temperature rises with rigor

B

Any time

C

One hour before rising of temperature

D

Five hours after the temperature

A

Correct Answer: A. When the temperature rises with rigor

1432160. Ozone depletion in Antarctica is caused by the formation of

A

Freon

B

Chlorine nitrate

C

Nitrogen dioxide

D

Sulfur dioxide

A

Correct Answer: A. Freon

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