Enzymes

Front

What is an enzyme-substrate complex?

Back

An enzyme-substrate complex is a temporary molecule formed when an enzyme binds to its substrate, facilitating a chemical reaction.

Front

What is the primary function of enzymes?

Back

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

Front

How do enzymes affect activation energy?

Back

Enzymes lower the activation energy needed for a reaction, allowing it to proceed more quickly.

Front

What are enzymes made of?

Back

Enzymes are composed of amino acids, which are the building blocks of proteins.

Front

What happens to enzymes at high temperatures?

Back

High temperatures can alter the shape of enzymes, leading to denaturation, which can affect their function.

Front

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

Back

The active site is the specific region of an enzyme where the substrate binds and the reaction occurs.

Front

What is substrate specificity in enzymes?

Back

Substrate specificity refers to the ability of an enzyme to choose exact substrate molecules from a group of similar chemical molecules.

Front

What is denaturation in the context of enzymes?

Back

Denaturation is the process where an enzyme loses its functional shape due to external stress, such as high temperature or extreme pH.

Front

How do pH levels affect enzyme activity?

Back

Each enzyme has an optimal pH range; deviations can lead to decreased activity or denaturation.

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 part of the enzyme.