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Initial phase of ion uptake...

Initial phase of ion uptake

A

Is passive and apoplastic

B

Occurs through symplast

C

Is active process

D

More than one option is correct

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Iron Uptake Phases:** - Iron uptake in plants occurs in two distinct phases: the initial phase and the subsequent phase. 2. **Identifying the Initial Phase:** - The initial phase of iron uptake is characterized by the rapid absorption of ions. 3. **Nature of the Initial Phase:** - This uptake occurs in the apoplast, which includes the cell wall and the spaces between cells. 4. **Type of Process:** - The process of uptake in this phase is passive, meaning it does not require energy. 5. **Conclusion:** - Based on the characteristics of the initial phase, the correct answer is that it is passive and apoplastic. **Final Answer:** - The initial phase of iron uptake is passive and apoplastic (Option A). ---
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AAKASH INSTITUTE ENGLISH-MINERAL NUTRITION-ASSIGNMENT (SECTION B)
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  11. Which is not true for nitrogenase enzyme in root nodules in legumes?

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  12. Leghemoglobin is found in which one of the following organisms ?

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  15. Select the correct statements from the given (a) Nitrogenase is...

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  16. Nitrogenase enzyme found in root nodules in legumes contains

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  17. The amino acid which plays a central role in nitrogen metabolism ...

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  18. Transported and storage form of nitrogen in plants are

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