When beet root cylinders are washed an then placed in hot water. The water turns red. This is due to

Options

A. Piasma membrane loses its function hence pigments come out of beetroot
B. Plasma membrane is functional and allowed anthocyanin to come out
C. Anthocyanin get denatured
D. None of the above

Answer

### Step-by-Step Text Solution:

1. **Understanding the Composition of Beetroot**:
- Beetroot contains a pigment called betalain, which is responsible for its red color.

2. **Washing the Beetroot Cylinders**:
- When beetroot cylinders are washed, they are cleaned of any dirt or impurities, but the betalain pigment remains intact within the plant cells.

3. **Placing in Hot Water**:
- When these washed beetroot cylinders are placed in hot water, the temperature causes changes in the cellular structure.

4. **Effect on Plasma Membrane**:
- The heat denatures the plasma membrane of the beetroot cells. Denaturation refers to the structural alteration of proteins, which affects their function.

5. **Loss of Function of Plasma Membrane**:
- As the plasma membrane is denatured, it loses its ability to contain the betalain pigment within the cells.

6. **Release of Pigment**:
- Consequently, the betalain pigment leaks out of the beetroot cells into the surrounding water.

7. **Change in Water Color**:
- The released betalain pigment colors the water red, which is why the hot water turns red after the beetroot cylinders are immersed in it.

### Final Answer:
The water turns red due to the release of the betalain pigment from the beetroot cells, which occurs because the plasma membrane loses its function when exposed to hot water.

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