Which of the following is an incorrect difference between heartwood and sapwood?

Options

A. (Heartwood) Cannot conduct water. (Sapwood) Involved in conduction of water.
B. (Heartwood) Darker in colour. (Sapwood) Lighter in colour.
C. (Heartwood) Less durable & succeptible to attack of pathogens. (Sapwood) Durable & resistant to attack of pathogens.
D. (Heartwood) Occupies large central region. (Sapwood) Occupies peripheral region.

Answer

To solve the question regarding the incorrect difference between heartwood and sapwood, we can break down the information into clear steps:

### Step-by-Step Solution:

1. **Define Heartwood and Sapwood**:
- Heartwood is the central, older part of a tree trunk that is usually darker and denser.
- Sapwood is the outer layer of the tree trunk, which is lighter in color and is involved in the conduction of water and nutrients.

2. **Characteristics of Heartwood**:
- Heartwood is typically darker due to the accumulation of chemicals such as tannins.
- It is known for its durability and resistance to decay and pathogens.
- Heartwood does not conduct water.

3. **Characteristics of Sapwood**:
- Sapwood is lighter in color compared to heartwood.
- It is responsible for the conduction of water and nutrients from the roots to the leaves.
- Sapwood is less durable than heartwood and is more susceptible to pathogens.

4. **Identify the Incorrect Statement**:
- The question asks for the incorrect difference.
- A statement that claims heartwood is less durable and more susceptible to pathogens is incorrect, as heartwood is actually more durable and resistant to pathogens.
- Conversely, a statement that claims sapwood is durable and resistant to pathogens is also incorrect, as sapwood is less durable and more susceptible.

5. **Conclusion**:
- The incorrect difference between heartwood and sapwood is that heartwood is less durable and susceptible to pathogens, while sapwood is durable and resistant to pathogens.