Companion cells are specialised parenchyma cells which are closely associated with the ______ elements.

Explanation

To solve the question "Companion cells are specialised parenchyma cells which are closely associated with the ______ elements," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of Companion Cells**: Companion cells are specialized cells found in the phloem tissue of plants. They play a crucial role in the transport of nutrients, particularly sugars.

2. **Identify the Relationship**: Companion cells are closely associated with another type of cell in the phloem. This relationship is essential for the functioning of the phloem in transporting carbohydrates.

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