The thylakoids contain two photosystems. They are the site of light-dependent reactions and are a <span>membrane-bound compartment inside chloroplasts and cyanobacteria.</span>
The plant receives energy from the sun and food sources.
They're called Enzyme. They're made up of proteins. They act as a biological catalysts that can speed up chemical reaction. They have an active site that certain substrates binds into it and form a product. Enzyme works under optimum pH and temperature and the active sites are not changed unless denatured.
