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Beet root if kept in cold water anthocya...

Beet root if kept in cold water anthocyanin does not come out due to plasma membrane

A

dead

B

impermeable to anthocyanin

C

permeable to anthocyanin

D

differential permeable

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Anthocyanin**: - Anthocyanin is a water-soluble pigment found in the vacuoles of plant cells, particularly in beetroot. It is responsible for the red, purple, and blue colors in various plants. 2. **Role of the Plasma Membrane**: - The plasma membrane, or cell membrane, surrounds the cell and is primarily composed of lipids. This structure is crucial for maintaining the integrity of the cell and controlling what substances can enter or exit. 3. **Permeability of the Plasma Membrane**: - The plasma membrane is selectively permeable, meaning it allows certain substances to pass while blocking others. In this case, the membrane is impermeable to anthocyanin, which means that anthocyanin cannot easily pass through the membrane when the beetroot is placed in cold water. 4. **Effect of Cold Water**: - When beetroot is kept in cold water, the anthocyanin remains trapped within the vacuoles because the plasma membrane does not allow it to diffuse out. This is due to the fact that the lipid bilayer of the membrane does not permit the passage of water-soluble substances like anthocyanin without the aid of specific transport proteins. 5. **Conclusion**: - Therefore, the correct answer to the question is that the plasma membrane is impermeable to anthocyanin, which is why it does not leak out into the cold water. ### Final Answer: The plasma membrane is impermeable to anthocyanin, which is why it does not come out of the beetroot when kept in cold water. ---
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TRUEMEN BIOLOGY ENGLISH-CELL- THE BASIC UNIT OF LIFE ( CELL AND ITS STRUCTURAL ORGANISATION )-MULTIPLE CHOICE ANSWER TYPE
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  10. Fluidity/flexibiliy of a cell membrane is due to are

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  11. Transmembrane proteins in cell membrane are

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  14. A membrane is held together primarily by

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  15. Absorptive cells on free surface bear

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  16. Carbohydrates in cell membrane participate in

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