Q. No.The deficiency symptoms of iron, magnesium and calcium in plants may actually be the symptoms of toxicity of:
1. Molybdenum
2. Manganese
3. Boron
4. Zinc
1. Molybdenum
2. Manganese
3. Boron
4. Zinc
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
For each molecule of ammonia produced during biological nitrogen fixation, the number of ATP molecules required is:
1. 4
2. 8
3. 12
4. 16
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which of the following is not a macronutrient required by plants?
1. Sulfur
2. Potassium
3. Calcium
4. Iron
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Identify the incorrectly matched pair:
|
|
Nutrient element |
Function in plants |
|
1. |
Magnesium |
Maintenance of ribosome structure |
|
2. |
Sulfur |
Constituent of ferrodoxin |
|
3. |
Zinc |
Synthesis of gibberellins |
|
4. |
Boron |
Pollen germination |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The product(s) of the reaction catalyzed by nitrogenase in root nodules of leguminous plants is/are.
1. Nitrate alone
2. Ammonia and oxygen
3. Ammonia and hydrogen
4. Ammonia alone
Which of the following element helps in maintaining the structure of ribosomes?
| 1. Magnesium | 2. Zinc |
| 3. Copper | 4. Molybdenum |
A plant infected with Rhizobium:
1. has necrotic tissues.
2. dies.
3. gets flaccid.
4. probably will grow faster.
The importance of nitrogen fixation can be judged by the fact that:
1. it can only be done by certain prokaryotes.
2. it is most often the limiting factor in plant growth.
3. it is very expensive in terms of metabolic energy.
4. its availability replaces requirement of some other essential nutrients.
Necrosis of young leaves is a symptom of deficiency of calcium in plants indicating that calcium:
1. is a relatively immobile nutrient in plants.
2. is tied up in formed chlorophyll molecules.
3. is concentrated in the xylem of older leaves.
4. is concentrated in older leaves.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
If the leaves of whole plant show chlorosis, the mineral nutrient most likely to be deficient would be:
1. boron
2. manganese
3. nitrogen
4. calcium
© 2024 GoodEd Technologies Pvt. Ltd.