Enzymes

Front

What is the enzyme-substrate complex?

Back

The enzyme-substrate complex is a temporary molecule formed when an enzyme comes into contact with its substrate, allowing the enzyme to catalyze a chemical reaction.

Front

Can an enzyme be used multiple times in chemical reactions?

Back

Yes, enzymes can be used multiple times as they are not consumed in the reaction.

Front

What is the optimum pH for enzyme activity?

Back

The optimum pH is the pH at which an enzyme is most active; for the enzyme in the provided graph, it is 6.6.

Front

How does pH affect enzyme efficiency?

Back

Enzyme efficiency can vary with pH; each enzyme has an optimum pH range where it functions best.

Front

What is the role of enzymes in chemical reactions?

Back

Enzymes act as catalysts that speed up chemical reactions by lowering the activation energy required.

Front

What does it mean for an enzyme to decrease activation energy?

Back

Decreasing activation energy means that the enzyme makes it easier for the reaction to occur, allowing it to proceed faster.

Front

What is a substrate in the context of enzymes?

Back

A substrate is the specific reactant that an enzyme acts upon during a chemical reaction.

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 it from catalyzing a reaction.

Front

What is an enzyme activator?

Back

An enzyme activator is a molecule that increases enzyme activity, often by enhancing the enzyme's ability to bind to its substrate.