[MCQ]Biology MCQs FOR UPSC(NDA/NA) Exam, SET 4||DEB STUDY

Biology MCQs FOR UPSC(NDA/NA) Exam

UPSC NDA/NA BIOLOGY MCQ Q.1

The common edible mushroom is a

(A) mass of fungal spore

(B) type of hypha

(C) tightly packed mycelium

(D) structure used for producing asexual spores

Ans.(C)

UPSC NDA/NA BIOLOGY MCQ Q.2

The main constituent of vinegar is

(A) citric acid

(B) acetic acid

(C) ascorbic acid

(D) tartaric acid

Ans.(B)

UPSC NDA/NA BIOLOGY MCQ Q.3

Which one among the following cell organelle is semi - permeable?

(A) cell membrane

(B) plasma membrane

(C) cell wall

(D) nucleus

Ans.(A)

UPSC NDA/NA BIOLOGY MCQ Q.4

Which one among the following statements regarding heart sound is correct?

(A) heart sounds are caused by the internal blood flow inside the heart

(B) heart sounds are caused by the external blood flow outside the heart

(C) heart sounds are caused by opening and closing of heart valves

(D) normal sounds are called murmurs

Ans.(C)

UPSC NDA/NA BIOLOGY MCQ Q.5

Which one among the following Indian scientists proposed a theory for long distance transport of water in plants?

(A) J C Bose

(B) Birbal Sahni

(C) P Maheshwari

(D) N S Parihar

Ans.(A)

UPSC NDA/NA BIOLOGY MCQ Q.6

A bee sting leaves an acid which causes pain and irritation. The injected acid is

(A) acetic acid

(B) sulphuric acid

(C) citric acid

(D) methanoic acid

Ans.(D)

UPSC NDA/NA BIOLOGY MCQ Q.7

Bats can ascertain distance,directions,nature and size of the obstacles at night. This is possible by reflection of the emitted

(A) Ultrasonic waves from the bat

(B) Ultrasonic waves from the distant objects

(C) supersonic waves from the bat

(D) supersonic waves from the distant objects

Ans.(A)

UPSC NDA/NA BIOLOGY MCQ Q.8

Sandal wood tree is considered a

(A) total root parasite

(B) total stem parasite

(C) stem parasite

(D) partial root parasite

Ans.(D)

UPSC NDA/NA BIOLOGY MCQ Q.9

The ginger is a -

(a) bulb

(b) rhizome

(c) tuber

(d) modified root.

Ans.(b)

UPSC NDA/NA BIOLOGY MCQ Q.10

Which one among the following statements about stomach is not correct?

(A) stomach acts as a temporary reservoir

(B) stomach mixes food with gastric juice

(C) stomach secretes lipase and amylase in gastric juice

(D) rate of stomach emptying depends on the type of food

Ans.(D)

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👉Biology MCQs FOR UPSC(NDA/NA) Exam, SET 3[PREV]

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⚡Biology MCQs For UPSC NDA/NA Exam⚡

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