The pigments phycoerythrin and<span> </span><span>phycocyanin</span>
Green plants absorb light energy using chlorophyll in their leaves. They use it to react carbon dioxide with water to make a sugar called glucose. The glucose is used in respiration, or converted into starch and stored. Oxygen is produced as a by-product.
Cementation and compaction
Stomata is the lay of the leaf found below the skin
