Which one is not correct about heartwood

Options

A. it is formed of living cells
B. it contains resin, tannins and other organic contents
C. it is of dark color
D. it lies in the centre of trunk

Answer

### Step-by-Step Solution:

1. **Understanding Heartwood**:
- Heartwood, also known as duramen, is the central part of a tree trunk. It is formed during the secondary growth of the plant.

2. **Characteristics of Heartwood**:
- **Color**: Heartwood is typically dark in color.
- **Functionality**: Heartwood is non-functional, meaning it does not participate in the transport of water and nutrients.
- **Cell Composition**: Heartwood is composed of non-living cells, which means it does not contain living cells.

3. **Analyzing the Options**:
- **Option 1**: "It is formed of living cells."
- This statement is incorrect because heartwood is made up of non-living cells.
- **Option 2**: "It contains resins, tannin, and other organic content."
- This statement is correct as heartwood does contain these substances.
- **Option 3**: "It is of dark color."
- This statement is also correct since heartwood is known for its dark coloration.
- **Option 4**: "It lies in the center of the trunk."
- This statement is correct as heartwood is indeed located at the center of the trunk.

4. **Conclusion**:
- The option that is not correct about heartwood is **Option 1**: "It is formed of living cells."