Enzyme Quick Check

Front

What is the active site of an enzyme?

Back

The active site is the specific region on an enzyme where substrates bind and undergo a chemical reaction.

Front

What is a substrate in the context of enzymes?

Back

A substrate is the substance on which an enzyme acts upon during a chemical reaction.

Front

What is the primary function of enzymes in biological reactions?

Back

Enzymes speed up chemical reactions by lowering the activation energy required for the reaction to occur.

Front

What are enzymes primarily made of?

Back

Enzymes are primarily made of proteins.

Front

How do enzymes affect the rate of a chemical reaction?

Back

Enzymes increase the rate of a chemical reaction without being consumed in the process.

Front

What is meant by enzyme specificity?

Back

Enzyme specificity refers to the ability of an enzyme to select and catalyze a specific substrate or group of substrates.

Front

What factors can affect enzyme activity?

Back

Factors that can affect enzyme activity include temperature, pH, substrate concentration, and the presence of inhibitors or activators.

Front

What is an enzyme inhibitor?

Back

An enzyme inhibitor is a substance that decreases the activity of an enzyme by binding to it and preventing substrate binding or reaction.

Front

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

Back

Competitive inhibition occurs when an inhibitor competes with the substrate for the active site, while non-competitive inhibition occurs when an inhibitor binds to a different site on the enzyme, altering its function.

Front

What role do cofactors and coenzymes play in enzyme activity?

Back

Cofactors and coenzymes are non-protein molecules that assist enzymes in catalyzing reactions, often by helping to stabilize the enzyme-substrate complex.