Photosyenthesis

Palisade cells / palisade layer has MANY chloroplasts - for maximum light absorption

and fast photosynthesis

Waxy cuticle is transparent to allow light to pass through to the palisade cells

Palisade cells are columnar and packed tightly - this means more can fit in the leaf and therefore

absorb light for photosynthesis.

Spongy layer has lots of air spaces - this allows carbon dioxide to diffuse quickly into the leaf

Leaves have pores called stomata - these allow gasses to diffuse in and out of the leaf and also

help to control water loss

2 ways in which a plant uses sugar are: Energy for growth, Building strctures like cell walls and most importanlty storing excess sugar and turning it into starch.