Answer;
-Active site
Explanation;
-An active site is the part of an enzyme that directly binds to a substrate and carries a reaction. It contains catalytic groups which are amino acids that promote formation and degradation of bonds.
-The active site consists of residues that form temporary bonds with the substrate (binding site) and residues that catalyze a reaction of that substrate (catalytic site).
Prefer different forms of contact
Answer: Cell with membrane potential have EXCITABILITY, thus, the correct option is C.
Explanation:
Membrane potential refers to the difference in electric potentials between the inside and the outside of the cell membranes of living organisms. This difference in electric potential give the cell membranes the ability to receive and to respond to stimuli, this ability is called excitability.
The central nervous system is responsible for processing stimuli information and sending out appropriate responses to different parts of the body including the muscles. The muscles tissues are able to respond to the directions of the nervous system to contract or to relax because of their ability to be excited due to the potential differences between the outer and the inner plasma membrane.