Q. No.The soil is enriched of dissolved ions and inorganic salts because of
1.
Raining
2.
Leaching
3.
Weathering
4.
Erosion
| 1. | Raining | 2. | Leaching |
| 3. | Weathering | 4. | Erosion |
Which of the following does not happen during nodule formation?
1. Rhizobium bacteria contact a susceptible root hair, divide near it
2. Successful infection of root hair causes it to curl
3. Infected thread carries the bacteria to the inner cortex
4. The bacteria get modified into rod shaped bacteroides and cause inner cortical and endodermal cells to divide
Reductive amination is
| 1. | Conversion of ammonia to alpha ketoglutarate and forms glutamate |
| 2. | Ammonia reacts with alpha ketoglutarate and forms glutamate |
| 3. | Ammonia reacts with glutamate and forms alpha-ketoglutaric acid |
| 4. | Conversion of ammonia to glutamate |
Transamination involves an enzyme?
| 1. | Transaminase | 2. | Dehydrogenase |
| 3. | Transaminase reductase | 4. | Reductive dehydrogenase |
The main amino acid over which Transamination occurs.
| 1. | Glutamate | 2. | Alanine |
| 3. | Glycine | 4. | Lysine |
For the transportation of Nitrogen to other part which of the following is preferably used?
| 1. | Lysine | 2. | Glutamate |
| 3. | Aspartate | 4. | Glutamine |
Denitrification is carried out by
1. Pseudomonas and Thiobacillus
2. Nitrosomonas and Anabaena
3. Nitrobacter and Nostoc
4. Ferrobacillus and Thiobacillus
Find the incorrect statement with respect to mineral absorption
1. Uptake of ions into outer or free space of cells is passive
2. In the metabolic phase ions pass into inner space, i.e, cytoplasm and vacuole
3. Absorption of ions into inner space is passive
4. Maximum mineral absorption occurs through zone of cell elongation
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