Question

State two ways by which leaves of plants are adapted to gaseous exchange.

Answer 1

1. Presence of stomata to allow passage of gases;
2. Presence of intercellular spaces/air passages to allow free circulation of air;
3. Thin to allow easy diffusion of gases;
4. Flattened shape to offer large surface area of air to reach cells;
5. Moist inner surface of cells to allow easy diffusion of gases;
6. Exposure to air to allow easy diffusion of gases;