UPSC Biology - General Awareness Multiple Choice Questions and Answers for IAS/IPS Prelims

Questions

141 With reference to the blood in a normal person, which one of the following statements is correct?

A The blood has more platelets than WBC

B White blood cells (WBC) are made by lymph nodes only

C Blood cells constitute about 70 percent of the total volume of the blood

D Compared to arteries, veins are less numerous and hold less of the body’s blood at any given time

View Answer Comment

Answer: Option [A]

142 The hormone insulin is a

A sterol

B peptide

C fatty acid

D glycolipid

View Answer Comment

Answer: Option [B]

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143 Foot and Mouth disease in animals, a current epidemic in some parts of the world, is caused by

A virus

B fungus

C protozoan

D bacterium

View Answer Comment

Answer: Option [A]

144 Consider the following statements:

I. Molasses is a by-product of sugar production process.

II. Bagasse obtained in the sugar mills is used as a fuel in the boilers to generate steam for the sugar factories.

III. Sugar can only be produced from sugarcane as the raw material.

Which of the statements are correct?

A I and II

B II and III

C I and III

D I, II and III

View Answer Comment

Answer: Option [A]

145 Phytotron is a facility to

A conserve endangered species of plants

B grow plants under disease-free condition

C grow plants under controlled conditions

D induce mutations

View Answer Comment

Answer: Option [C]

146 Consider the following animals:

I. Sea cow

II. Sea horse

III. Sea lion

Which of the minerals given above is/are required by human body for the contraction of muscles?

A I only

B I and III only

C II and III only

D I, II and III

View Answer Comment

Answer: Option [B]

147 In the context of genetic disorders, consider the following: A woman suffers from colour blindness while her husband does not suffer from it. They have a son and a daughter. In this context, which one of the following statements is most probably correct?

A Both children suffer from colour blindness

B Both children do not suffer from colour blindness.

C Daughter suffers from colour blindness while son does not suffer from it.

D Son suffers from colour blindness while daughter does not suffer from it.

View Answer Comment

Answer: Option [D]

148 Ergotism is due to consumption of

A rotting vegetables

B contaminated water

C contaminated grains

D safe cooked food

View Answer Comment

Answer: Option [C]

149 The complete conversion of glucose, in the presence of oxygen, into carbon dioxide and water with release of energy is called

A hydrolysis

B glycolysis

C aerobic respiration

D anaerobic respiration

View Answer Comment

Answer: Option [C]

150 The cellular and molecular control of programmed cell death is known as

A necrosis

B degeneration

C ageing

D apoptosis

View Answer Comment

Answer: Option [D]

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