The energy required, for the process of nitrogen metabolism comes from

  • Respiration of the host cells

  • Oxidation of the host cells

  • Respiration of the bacterial cells

  • Oxidation of the bacterial cells

Ammonium is used to synthesise amino acids in plants which of the following is not a way?

  • Reductive Amination

  • Transamination

  • Oxidative amination

  • All of these

Reductive animation is

  • Conversion of ammonia to alpha ketoglutarate and forms glutamate

  • Ammonia reacts with alpha ketoglutarate and forms glutamate

  • Ammonia reacts with glutamate and forms alpha-ketoglutaric acid

  • Conversion of ammonia to glutamate

Which of the following is an ezyme of reductive animation?

  • Glutamate oxidase

  • Glutamate dehydrogenase

  • Glutamate carboxylase

  • Aspartate oxidase

During reductive animation

  • NADH gets converted to NAD+

  • NADPH gets converted to NADP

  • NADP gets converted to NADPH

  • NAD+ gets converted to NADH

Transamination

  • Involves the transfer of amino group from one amino acid to the keto group of keto acid.

  • Involves the transfer of amino group from one amino acid to the amino group of another amino acid

  • Involves the transfer of keto group from one amino acid to the keto group of keto acid

  • Involves the transfer of ke to group of keto acid to the keto group of keto acid

Transamination involves an enzyme?

  • Transaminase

  • Dehydrogenase

  • Transaminase reductase

  • Reductive dehydrogenase

The main amino acid over which Transamination occurs.

  • Glutamate

  • Alanine

  • Glycine

  • Lysine

The most important amides of plants are

  • Asparagine

  • Glutamine

  • a structural part of proteins

  • All of these

Asparagine is

  • Amide formed by addition of another amino group to glutamate

  • Two amino groups over carboxy group of aspartate

  • One amino group over hydroxy part of aspartic acid

  • All of these

Glutamine is

  • Amide formed by addition of another amino group to Glycine

  • Two amino groups over carboxy group of aspartate

  • One amino group over hydroxy part of glutamic acid

  • All of these

For the transportation of Nitrogen to other part which of the following is preferably used?

  • Lysine

  • Glutamate

  • Aspartate

  • Glutamine

Nodules of some plants like…….export the fixed nitrogen as….

  • Soyabean, amide

  • Soyabean, Ureides

  • Mango, amide

  • Mango, Ureides

Ureides have

  • A particularly high Nitrogen to carbon ratio

  • A particularly low Nitrogen to carbon ratio

  • A particularly low Nitrogen to oxygen ratio

  • A particularly low Nitrogen ratio

Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I                                      Column II
(Plant mineral)                             (Function)

I. Manganese                               1. Splitting of water

II. Zinc                                        2. Synthesis of auxin

III. Boron                                    3. Pollen germination

IV. Molybdenum                           4. Nitrogen metabolism
Codes:
       I   II    III    IV
  • D.    1   2     4     3

  • C.    2   1     3     4
  • A.    1   2     3     4
  • B.    2   1     4     3

Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I                    Column II
(element)                   (enzyme)
I. Magnesium              1. PEP carboxylase
II. Zinc                       2. Alcohol dehydrogenase
Codes:

      I    II   III
A.   1    2   3
B.   2    1   3
  • D.   1    3   2

  • C.   2    3   1
  • III. Molybdenum          3. Nitrogenase
  • 4

What type of reaction is shown in the given figure?
  • Deamination
  • Reductive amination
  • Transamination
  • Nitrogenation

In the given diagram of a typical set up for nutrient solution culture, the purpose of X is:
  • Addition of water
  • Addition of nutrients
  • Removal of wastes
  • Aeration

Which is essential for the growth of root tip?

  •   Zn

  •   Fe

  •   Ca

  •   Mn

In which of the following forms is iron absorbed by plants?

  • Ferric

  • Ferrous
  • Free element
  • Both ferric and ferrous

Which of the following elements is responsible for maintaining turgor in cells ?

 
  • Magnesium
  • Sodium
  • Potassium
  • Calcium
In which of the following, all three are macronutrients?
  • Iron, copper, molybdenum
  • Molybdenum, magnesium, manganese
  • Nitrogen, zinc, manganese
  • Nitrogen, magnesium, phosphorus

During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by
The first stable product of fixation of atmospheric nitrogen in leguminous plants is:

Manganese is required in
Nitrogen-fixation in root nodules of Alnus is brought about by

Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing microorganism ?

Thiobacillus is a group of bacteria helpful in carrying out:

A free living aerobic soil bacterium capable of
fixing nitrogen is

Which of the following bacteria reduce nitrate in soil into nitrogen ?
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Practice Botany Quiz Questions and Answers