Question

Match the organisms in column A with their action in column B.

A B
(i) Bacteria = (a) Causing cholera
(ii) Rhizobium = (b) Fixing nitrogen
(iii) Lactobacillus = (c) Setting of curd
(iv) Yeast = (d) Baking of bread
(v) A protozoan = (e) Causing malaria
(vi) A virus = (f) Causing AIDS
(vii) ??? = (g) Producing antibodies
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Answer 1

Answer:

i-a

ii - b

iii - c

iv - d

v - e

vi - a

vii - g

Explanation:

i vibrio tubercoli

ii rhizobium fixes atmospheric nitrogen into nitrates and nitrites

iii lactobacillus converts lactose of milk into lactic acid

iv yeast is used in baking of cakes as it makes the cake rise and fluffy

v plasmodium protozoa

vi HIV virus

vii WBCs