Which of the following is mismatched?

All of the below
Secondary meristem-tip of branches
Root meristem-tip of roots
Primary meristem-primary tissue
Secondary meristem- apical meristem

Secondary meristem-apical meristem

The following statement is mismatched: Secondary meristem-tip of branches.

To determine which of the following options is mismatched, we need to understand the concept of meristems and their locations in plants.

Meristems are specialized plant tissues responsible for the growth and development of plants. They are regions of actively dividing cells that allow for the production of new cells, leading to plant growth. There are two main types of meristems in plants: primary and secondary meristems.

Primary meristems are located at the tips of roots and shoots, and they give rise to primary tissues. The primary meristem at the root tip is responsible for root growth, while the primary meristem at the shoot tip (apical meristem) is responsible for shoot growth.

Secondary meristems, on the other hand, are not found at the tips but within the body of the plant, and they give rise to secondary tissues responsible for the increase in girth or thickness of the plant. Secondary meristems are typically found in the cambium regions of stems and roots.

Now, let's examine the options given:

1. Secondary meristem - tip of branches: This statement is correct. Secondary meristems are not located at the tips of branches but within the cambium region.

2. Root meristem - tip of roots: This statement is also correct. The root meristem is indeed located at the tip of the root and is responsible for root growth.

3. Primary meristem - primary tissue: This statement is correct. Primary meristems give rise to primary tissues, which are the initial tissues formed during the plant's growth.

4. Secondary meristem - apical meristem: This statement is mismatched. Secondary meristems are not the same as apical meristems. While apical meristems are primary meristems located at the tip of the shoots, secondary meristems are responsible for the production of secondary tissues.

Therefore, the mismatched option is "Secondary meristem - apical meristem."