- 1(current)
Q. No.A plant requires magnesium for
| 1. holding cells together | 2. protein synthesis |
| 3. chlorophyll synthesis | 4. cell wall development |
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Which of the following element helps in maintaining the structure of ribosomes?
| 1. Magnesium | 2. Zinc |
| 3. Copper | 4. Molybdenum |
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The major role of minor elements inside living organisms is to act as:
1. Co-factors of enzymes
2. Building blocks of important amino acids
3. Constituent of hormones
4. Binder of cell structure
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Cytochrome is:
1. Metallo flavo protein
2. Fe containing porphyrin pigment
3. Glycoprotein
4. Lipid
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Assertion: Micronutrients function in plants mainly as cofactors.
Reason: Iron is a metallic component of cytochromes.
1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
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.
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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 |
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- 1(current)
Q. No.
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