Based on the diagram drawn above in (i) give a suitable term for each of the following descriptions:
The structure that is semipermeable in nature.

Explanation

**Step-by-Step Solution:**

1. **Identify the Structure**: The question asks for a structure that is semipermeable in nature. In the context of a cell, this refers to the outer layer that regulates what enters and exits the cell.

2. **Define the Term**: The term that describes the semipermeable structure of a cell is the "plasma membrane."

3. **Explain the Composition**: The plasma membrane is primarily composed of a bilayer of phospholipids, which means it has two layers of phospholipid molecules. Each phospholipid molecule consists of a hydrophilic (water-attracting) "head" and two hydrophobic (water-repelling) "tails."

...