A certain plant is kept in a flask containing blue colored water. After an hour, a cross section of its tissue is observed under microscope. It can be concluded from the above observation that the

Options

A. meristematic tissues will not be stained blue
B. phloem will not be stained blue
C. companion cells will be stained blue
D. phloem will be stained blue

Answer

**Step-by-Step Solution:**

1. **Understanding the Experiment**: A plant is placed in a flask with blue colored water. The purpose of this experiment is to observe how the plant absorbs water and whether the blue dye is taken up by the plant tissues.

2. **Water Absorption**: The plant roots absorb water from the flask. This is a normal process where roots take up water and nutrients from the soil or surrounding medium.

3. **Movement of Water**: Once the water is absorbed by the roots, it travels upwards through the plant via the xylem vessels. The xylem is responsible for transporting water and dissolved minerals from the roots to the rest of the plant.

4. **Observation Under Microscope**: After an hour, a cross-section of the plant tissue is observed under a microscope. The expectation is to see whether the blue dye has moved through the plant.

5. **Analyzing the Options**:
- **Option 1**: "This plant will not be stained blue." - This is incorrect because the plant absorbs water, and the dye will likely move with it.
- **Option 2**: "Flowing will not be stained blue." - This is correct. The phloem is responsible for transporting food (sugars) and does not transport water, so it will not be stained blue.
- **Option 3**: "Companion cell will be stained blue." - This is incorrect. Companion cells are part of the phloem and will not be stained blue since they do not transport water.
- **Option 4**: "Flowing will be stained blue." - This is also incorrect for the same reason as option 2.

6. **Conclusion**: The correct conclusion from the experiment is that the phloem will not be stained blue because it is not involved in the transport of water.

**Final Answer**: The correct option is **Option 2: Flowing will not be stained blue**.

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