Which element is very essential for uptake and utilization of `Ca^(+2)` , membrane function, pollen germination and carbohydrate translocation via phloem -

Options

A. Cl
B. Mg
C. Mn
D. B

Answer

To solve the question regarding which element is essential for the uptake and utilization of \(Ca^{2+}\), membrane function, pollen germination, and carbohydrate translocation via phloem, we can follow these steps:

### Step 1: Identify the Functions Mentioned
The question lists several functions:
- Uptake and utilization of calcium ions (\(Ca^{2+}\))
- Membrane function
- Pollen germination
- Carbohydrate translocation via phloem

### Step 2: Analyze the Elements Related to These Functions
Next, we need to consider which elements are known to be involved in these specific functions.

1. **Calcium (\(Ca^{2+}\))**: Essential for cell wall stability and signaling.
2. **Boron (B)**: Known to play a crucial role in cell wall formation and is vital for the uptake and utilization of calcium. It also supports pollen germination and carbohydrate translocation.
3. **Chlorine (Cl)**: Primarily involved in maintaining ionic balance and is not directly related to the functions mentioned.
4. **Magnesium (Mg)**: A component of chlorophyll and important for enzyme activation but does not specifically relate to the functions listed.

### Step 3: Determine the Correct Element
From the analysis, boron is the element that is directly associated with:
- Uptake and utilization of calcium ions
- Membrane function
- Pollen germination
- Carbohydrate translocation via phloem

### Conclusion
Thus, the correct answer to the question is **Boron (B)**.

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