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biology quiz

Total questions: 9

Worksheet time: 5mins

Name
Class
Date
1.

Rhizobium lives in the root nodules of (a)   plants

2.

Our atmosphere has ____ % of nitrogen gas .

a)

90

b)

82

c)

78

d)

98

3.

The atmospheric nitrogen cannot be taken directly by _______ and _______ .

a)

Plants

b)

Rhizobium

c)

Bacteria

d)

Animals

4.

Nitrogen fixation is the process by which atmospheric nitrogen is converted by either natural or industrial means to a form of nitrogen such as _______ .

a)

Ammonia

b)

protozoa

c)

rhizobium

d)

fungi

5.

What do you understand by "Nitrogen Fixation " ?

a)

The process by which bacteria turns the plant roots into liquid nitrogen.

b)

The process in which ammonia is used to make food in plants.

c)

The process of converting nitrogen gas into compounds of nitrogen to be used by the plants.

d)

The process by which plants absorb energy from the sun

6.

identify the picture ?

a)

nodules

b)

plants

c)

fungi

d)

root hairs

7.

Name the microorganisms which can fix atmospheric nitrogen in the soil

(a)  

8.

Bacteria turn compounds of nitrogen into (a)   .

9.

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