NEED TO KNOW EQUATION
carbon dioxide + water (+ light enegry) ------> glucose + oxygen
How the products are used
The glucose (carbohydrate) is useful but the oxygen is given off as a waste gas.
Plants use some of the glucose straight away for processes like respiration and protein synthesis but some is converted into starch and stored for later - winter/times of low light.
Where the 'ingredients' for photosynthesis come from
~Carbon dioxide gets taken in by the leaves.
~Light gets absorbed by the chlorophyll in the cloroplasts in the cells in the leaves.
~Water gets taken in by the roots.
How leaves are adapted to do their job
~Leaf structure - upper epidermis, palisade layer, spongy layer, lower epidermis. You could remember this by unusual people sing lots.
~Waxy cuticle stops water loss ~air spaces-oxygen get to cells - respiration
~Palisade cells in upper epidermis have lots of chloroplasts-lots of photosynthesis
~Cells not tightly packed-lots of surface area for lots of gas exchange and chloroplasts.
~Guard cells open and close the stomata to control water loss.
~Stomata allow gasses to move in and out.
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