Chapter 7 Nutrition in Blalls

Question 1

What is the function of the lamina??

Answer 1

• Thin surface increases its surface area to volume ratio, enabling the leaf to obtain maximum amount of sunlight for
photosynthesis
• Rapid diffusion of carbon dioxide into the leaf allows gases to reach photosynthetic cells.

Question 2

What is the function of the petiole?

Answer 2

The petiole is the leaf stalk.
It is the structure that holds the lamina away from the
stem, allowing leaf to absorb sunlight and air.