Biology - Questions and Answers, General Study (GK)

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391.

Consider the following statements

(a)Ozone is mostly found in the stratosphere

(b)Ozone layer lies 55-75 km above the surface of the earth

(c)Ozone absorbs ultraviolet radiation from the sun

(d)Ozone layer has no significance for life on the earth

Comment

Answer is: BNA

392.

'Fixation of nitrogen' implies

(a)The liquificationof nitrogen

(b)The conversion of nitrogen into amines

(c)The solidification of nitrogen gas into the atmosphere

(d)The conversion of atmospheric nitrogen into useful compounds

Comment

Answer is: DNA

393.

Quinine is drug used in the treatment of malaria. From which part of the plant is it obtained?

(a)Roots

(b)Stem

(c)Bark

(d)Leaves

Comment

Answer is: CNA

394.

The plant dye henna imparts orange-red colour to skin and hairs due to its reaction with which of the following?

(a)Proteins and amino acid

(b)Lipids

(c)Carbohydrates

(d)Nucleic acids

Comment

Answer is: ANA

395.

Cloves, used as a spice, are derived from which of the following plant parts?

(a)Seeds

(b)Fruits

(c)Flower buds

(d)Young leaves

Comment

Answer is: CNA

396.

The leaves used wrappers for bidis are obtained from which one of the following?

(a)Shikakai

(b)Rudraksha

(c)Lemon grass

(d)Tendu

Comment

Answer is: DNA

397.

Soft drinks such as cocoa contain significant quantities of

(a)Caffeine

(b)Nicotine

(c)Tannin

(d)Renin

Comment

Answer is: ANA

398.

Which one of the following plants is used for green manuring in India?

(a)Wheat

(b)Sunnhemp

(c)Cotton

(d)Rice

Comment

Answer is: BNA

399.

Which one of the following is commonly used as a flavouring agent during the preparation of noodles?

(a)Saffron

(b)Cinnamon

(c)Olive oil

(d)Ajinmoto

Comment

Answer is: DNA

400.

Golden fibre refers to

(a)Hemp

(b)Cotton

(c)Jute

(d)Nylon

Comment

Answer is: CNA

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Biology - Questions and AnswersPage 40

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