Mention the most significant function of lenticels.

Explanation

### Step-by-Step Solution:

1. **Definition of Lenticels**:
Lenticels are specialized structures found in the periderm of woody plants, particularly in the bark of trees and roots. They consist of a porous tissue made up of cells with large intercellular spaces.

2. **Location**:
Lenticels are primarily located in the bark of woody stems and roots of dicotyledonous plants. This is important as it highlights where these structures are found.

...