Friday, April 19, 2019

WBCS Polity and Constitution MCQs Prelims and Mains

WBCS Online Preparation of General Science (Biology) P15


Biology 15

71. Which of the following is not a stimulant?
(A) Cocaine
(B) Amphetamines
(C) Caffeine
(D) Barbiturates

Correct Answer: [D] Barbiturates.
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72. Of the twenty amino acids how many are considered essential?
(A) Twelve
(B) Fourteen
(C) Six
(D) Eight

Correct Answer: [D] Eight.
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73. Cerebral Malaria is caused by
(A) Plasmodium falciparum
(B) None of the above
(C) Plasmodium vivax
(D) Plasmodium malaria

Correct Answer: [A] Plasmodium falciparum.
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74. The intermediate host of Leishmania donovani is
(A) Dragonfly
(B) Anopheles mosquito
(C) Sandfly
(D) Tsetse fly

Correct Answer: [C] Sandfly.
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75. Antibodies are synthesized by
(A) Liver
(B) Kidney
(C) Bone marrow
(D) Plasma and Lymph

Correct Answer: [D] Plasma and Lymph.
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