Biology - Questions and Answers, General Study (GK)

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1701.

The end product of anaerobic respiration in human is

(a)Lactic acid

(b)Ethyl alcohol

(c)Ethyl alcohol+CO₂

(d)Lactic acid+CO₂

Comment

Answer is: A

1702.

Endocrine glands

(a)Are ductless glands

(b)Discharge their secretions in blood

(c)Secrete hormones

(d)All of these

Comment

Answer is: D

1703.

Heparin is a / an

(a)Coagulant

(b)Anti-coagulant

(c)Haemostatic

(d)None of these

Comment

Answer is: B

1704.

Which one of the following is Mendelian dihybrid ratio ?

(a)1 : 1 : 1 : 1

(b)9 : 3 : 3 : 1

(d)1 : 7 : 7 : 1

Comment

Answer is: B

1705.

With reference to the origin of heartbeat in man, which of the following statements are false?
i) Sine-auricular node (SA node) does not act as pace-maker.
ii) Sino-auricular node acts as a pace-maker.
iii) Pace-maker lies at the top of the right auricle.
iv) Pate-maker is situated at the top of the left auricle.
Of these :

(a)(i) only

(b)(i) and (ii)

(c)I) and (iv)

(d)(iii) and (iv)

Comment

Answer is: C

1706.

Cornea is

(a)Sclera

(b)Retina

(c)Pupil

(d)The region front of the lens which is perfectly transparent

Comment

Answer is: D

1707.

An increase in blood pressure and rate of heartbeat is caused by the hormone

(a)Adrenaline

(b)Gastrin

(c)Thyroxine

(d)Secretin

Comment

Answer is: A

1708.

The instrument used to measure blood pressure is

(a)Spectrometer

(b)Spherometer

(c)Barometer

(d)Sphygmomanometer

Comment

Answer is: D

1709.

Birth of Immature Young ones takes place in

(a)Rat

(b)Kangaroo

(c)Rabbit

(d)None of these

Comment

Answer is: B

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Biology - Questions and AnswersPage 171

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