- 1(current)
Q. No.In the mycorrhizal symbiotic relationship, the root provides the fungus with:
| 1. Water | 2. Phosphorus |
| 3. N – containing compounds | 4. Sodium and potassium |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyI. Root hairs are thin walled slender extensions of root epidermal cells that greatly increase the surface area for absorption.
II. Water is absorbed along with mineral solutes, by the root hairs, by diffusion as well as by active transport aided by cytoplasmic streaming.
1. Only I
2. Only II
3. Neither I nor II
4. Both I and II
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyUnloading of mineral ions occurs at the fine vein endings through:
1. diffusion and, are passively taken up by the sink cells
2. active transport and, are passively taken up by the sink cells
3. diffusion and, are actively taken up by the sink cells
4. active transport and, are actively taken up by the sink cells
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn analysis of xylem exudates will show that most of the nitrogen is carried as:
1. Inorganic ions
2. Ammonia dissolved in water
3. Dinitrogen
4. Organic compounds such as amino acids
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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