biology in human welfare - Category wise Question and Answer Practice Test with Solutions

biology in human welfare PRACTICE TEST [2 - EXERCISES]

set 1

set 2

Question : 11

The most common species for bee-keeping in India is

a) Apis dorsata

b) Apis florae

c) Apis mellifera

d) Apis indica

Answer: (d)

Question : 12

Chemically, the silk is

a) Protein

b) Cellulose

c) Resin

d) Lipid

Answer: (a)

Question : 13

The term antibiotic was coined by

a) Louis Pasteur

b) Alexander Flemming

c) S. Waksman

d) Edward Jenner

Answer: (c)

Question : 14

The example of non-renewable source of energy is

a) biogas

b) alcohol fuel

c) petroleum

d) fuel wood

Answer: (c)

Question : 15

Yeast Saccharomyces cervisiae is used in the industrial production of

a) tetracycline

b) butanol

c) citric acid

d) ethanol

Answer: (d)

Commercial ethanol or ethyl alcohol is produced by yeast Saccharomyces cerevisiae.

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