Mineral Nutrition

Which micronutrient is required for splitting of water molecule during photosynthesis?

1. Molybdenum
2. Magnesium
3. Copper
4. Manganese

Match List I with List II:

1. A-II, B-III, C-IV, D-I
2. A-III, B-I, C-IV, D-II
3. A-II, B-IV, C-I, D-III
4. A-III, B-II, C-I, D-IV

Match List-I with List-II Choose the correct answer from the options given below:

1. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
2. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
3. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
4. (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)

Which one of the following produces nitrogen fixing nodules on the roots of Alnus?

1. Rhizobium
2. Frankia
3. Rhodospirillum
4. Beijerinckia

Which of the following pair represents free living nitrogen fixing aerobic bacteria?

1. Pseudomonas and Thiobacillus
2. Rhizobium and Frankia
3. Azotobacter and Beijernickia
4. Anabaena and Rhodospirillum

Which of the following protects nitrogenase inside the root nodule of a leguminous plant?

1. Glutamate dehydrogenase
2. Catalase
3. leg haemoglobin
4. Transaminase

Match Column - I with Column - II. Choose the correct answer from options given below.

1. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
2. (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
3. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
4. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

Match the following concerning essential elements and their functions in plants Select the correct option

1. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
2. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
3. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
4. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)

The product(s) of reaction catalyzed by nitrogenase in root nodules of leguminous plants is/are

1. Ammonia alone
2. Nitrate alone
3. Ammonia and oxygen
4. Ammonia and hydrogen

Thiobacillus is a group of bacteria helpful in carrying out :

1. Nitrification
2. Denitrification
3. Nitrogen fixation
4. Chemoautotrophic fixation