It is made of lipids bound together called phospholipids and it is located in the plant cell and it it semipermeable meaning it can allow and reject
First episode release date was <span>February 27, 2012</span>
In biology, the active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction. The active site consists of residues that form temporary bonds with the substrate (binding site) and residues that catalyse a reaction of that substrate (catalytic site).
A food chain is a good wxample for animals or living things that need food