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MINERAL NUTRITION- Quiz 5

Total questions: 10

Worksheet time: 3mins

Name
Class
Date
1.

Aspargine and Glutamine are :

a)

Amino acids

b)

Imino acids

c)

Amide

d)

Protein

2.

Choose wrong one.

a)

N2-fixation needs anaerobic condition

b)

ATP, that is used in nitrogen fixation comes from respiration of host cells

c)

Amides –– serves as protein precursor, key compound for nitrogen transport and storage.

d)

Amides have low N– to C ratio

3.

The cell of a root nodule in leguminous plant shows a rod shaped structure called ____________.

a)

Bacteria

b)

Infection thread

c)

Bacteroid

d)

Ureide

4.

Nitrifying bacteria

a)

Reduce nitrates to free nitrogen

b)

Oxidize ammonia to nitrates

c)

Convert free nitrogen to nitrogen compounds

d)

Convert proteins into ammonia

5.

Which one of the following elements in plants is not remobilised?

a)

Sulphur

b)

Phosphorus

c)

Calcium

d)

Potassium

6.

For its activity, carboxypeptidase requires :

a)

Zinc

b)

Iron

c)

Niacin

d)

Copper

7.

The first stable product of fixation of atmospheric nitrogen in leguminous plants is :

a)

NO2

b)

Ammonia

c)

NO3

d)

Glutamate

8.

Anoxygenic photosynthesis is characteristic of :

a)

Rhodospirillum

b)

Spirogyra

c)

Chlamydomonas

d)

Ulva

9.

A few normal seedlings of tomato were kept in a dark room. After a few days they were found to have become white-coloured like albinos. Which of the following terms will you use to describe them?

a)

Mutated

b)

Embolised

c)

Etiolated

d)

Defoliated

10.

Conversion of nitrate to ammonia is a/an :

a)

Amination process

b)

Deamination process

c)

Oxidative process

d)

Reductive process