Question

chapter 8: an introduction to metabolism
use figure 8.16, shown below, to answer questions 22 and 23.

1. define these terms and then use them to label the following figure.

enzyme
substrate
active site
products

Explanation:

An enzyme is a biological catalyst, usually a protein, that speeds up chemical reactions in living organisms. A substrate is the specific molecule or molecules that an enzyme acts upon. The active - site is the region on the enzyme where the substrate binds and the chemical reaction occurs. Products are the substances formed as a result of the enzyme - catalyzed reaction. To label the figure, the large blue structure is the enzyme, the small red and green shapes approaching the enzyme are the substrates, the region on the enzyme where the substrates bind is the active site, and the combined red - green shape inside the enzyme represents the products being formed.

Answer:

Enzyme: A biological catalyst, usually a protein, that speeds up chemical reactions.
Substrate: The molecule(s) an enzyme acts upon.
Active site: The region on the enzyme where the substrate binds.
Products: Substances formed from the enzyme - catalyzed reaction.