Enzymes

Front

What is an enzyme?

Back

A biological catalyst that speeds up chemical reactions in living organisms.

Front

What is the role of the active site in an enzyme?

Back

The active site is the region on the enzyme where substrate molecules bind and undergo a chemical reaction.

Front

What are allosteric inhibitors?

Back

Substances that bind to an enzyme at a site other than the active site, causing a change in the enzyme's shape and reducing its activity.

Front

True or False: Allosteric inhibitors block the active site of an enzyme.

Back

False. Allosteric inhibitors bind to a different site.

Front

What is a substrate in the context of enzymes?

Back

The reactant molecule that an enzyme acts upon.

Front

What is the difference between competitive and non-competitive inhibition?

Back

Competitive inhibitors bind to the active site, while non-competitive inhibitors bind to an allosteric site.

Front

What are products in an enzymatic reaction?

Back

The molecules that are produced as a result of the enzymatic reaction.

Front

What is an inhibitor?

Back

A substance that can bind to an enzyme and prevent the substrate from binding.

Front

How do temperature and pH affect enzyme activity?

Back

Enzymes have optimal temperature and pH ranges; deviations can lead to decreased activity or denaturation.

Front

What is enzyme specificity?

Back

The ability of an enzyme to choose exact substrates from a group of similar chemical molecules.