AP Biology: Enzymes

Front

What does a negative Delta G indicate about a reaction?

Back

The reaction releases energy and is spontaneous.

Front

What is the significance of phosphorylation of glucose in cellular processes?

Back

It tags glucose making it hard to escape the cell.

Front

Which ion is mentioned as possibly facilitating the phosphorylation of glucose?

Back

Magnesium ion.

Front

What is meant by 'induced fit' in the context of enzyme activity?

Back

The enzyme changes shape to better fit the substrates.

Front

What property of enzymes allows them to be used repeatedly?

Back

They are not altered by the reaction they catalyze.

Front

Define enzymes.

Back

Biological catalysts that speed 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 where substrates bind and reactions occur.

Front

Explain the concept of enzyme specificity.

Back

Enzymes are specific to particular substrates due to their unique active site shapes.

Front

What factors can affect enzyme activity?

Back

Temperature, pH, substrate concentration, and the presence of inhibitors or activators.

Front

What is an enzyme inhibitor?

Back

A substance that decreases enzyme activity by binding to the enzyme.