In an old tree truck of mango , which tissue will be present in the maximum amount ?

Options

A. Primary xylem
B. Primary phloem
C. Secondary xylem
D. Secondary cortex

Answer

To solve the question of which tissue is present in the maximum amount in an old mango tree trunk, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Tree Structure**:
- Trees have various types of tissues, including primary and secondary tissues. The primary tissues are formed during the initial growth of the tree, while secondary tissues are formed later as the tree matures.

2. **Identifying Primary and Secondary Tissues**:
- The primary xylem is the first type of xylem tissue that develops in a tree. However, as the tree ages, it produces secondary xylem, which is formed by the vascular cambium.

3. **Role of Secondary Xylem**:
- The secondary xylem is responsible for the transport of water and nutrients and provides structural support to the tree. As the tree grows older, the amount of secondary xylem increases significantly.

4. **Conclusion**:
- In an old mango tree trunk, the tissue that will be present in the maximum amount is the **secondary xylem**. This is because it continues to accumulate as the tree ages, while the primary xylem does not increase in quantity.

### Final Answer:
The tissue present in the maximum amount in an old mango tree trunk is **secondary xylem**.

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