| 1. | Carbohydrates, fats & proteins are essential for: |
| A. | Metabolic processes of an organism | B. | Providing energy |
| C. | Formation of sturctures | D. | All of these |
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| 2. | Magnesium is present in which of the following? |
| A. | Cytochromes | B. | ATP |
| C. | Chlorophyll | D. | Haemoglobin |
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| 3. | Deficiency of which of the following causes chlorosis? |
| A. | Nitrogen | B. | Magnesium |
| C. | Iron | D. | Both A and B |
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| 4. | Deficiency of K+ causes: |
| A. | Stunted growth & strong chlorosis | B. | No electron transport chains |
| C. | Premature death of leaves. | D. | Stunted growth of roots. |
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| 5. | Puccinia is a parasitic: |
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| 6. | Autotrophic organisms can exist in an exclusively ______ environment. |
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| 7. | Strong chlorosis is due to the deficiency of _____ in plants. |
| A. | Magnesium | B. | Nitrogen |
| C. | Potassium | D. | Phosphorus |
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| 8. | Stunted growth of roots is due to the deficiency of _____ in plants |
| A. | Potassium | B. | Magnesium |
| C. | Phosphorus | D. | Iron. |
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| 9. | Puccinia commonly destroys |
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| 10. | Nodules on roots of leguminous plants have _____ bacteria |
| A. | Anaerobic | B. | Nitrogen fixing |
| C. | Nitrifying | D. | Ammonifying |
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