2.20 describe the structure of the leaf and explain how it is adapted for photosynthesis

Adaptions of the leave for photosynthesis:

Leaf stalk:

·         Supports the blade

·         Can grow to angle blade towards sun

Main vein

·         Carries the products of photosynthesis to rest of the plant

·         Easy access to all the leaf as it is placed in the center

Leaf blade:

·         Angled to receive the maximum amount of sunlight

·         Large surface area to volume ratio

·         Thin, flat, broad

Branching veins:

·         Allow quick transportation of the products of photosynthesis to rest of plant

·         More efficient than diffusion to main vein