Proteins and Enzymes

Front

What are proteins?

Back

Proteins are large, complex molecules made up of amino acids that perform a variety of functions in the body, including building tissues, acting as enzymes, and supporting immune function.

Front

What is the primary structure of a protein?

Back

The primary structure of a protein is the sequence of amino acids in a polypeptide chain.

Front

What factors can affect protein structure?

Back

Environmental factors such as temperature, pH, and concentration of salts can affect protein structure.

Front

What is denaturation in proteins?

Back

Denaturation is the process where proteins lose their native structure due to external stress or conditions, leading to a loss of function.

Front

What is the role of enzymes in biochemical reactions?

Back

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

Front

What is a substrate in enzyme activity?

Back

A substrate is the reactant molecule upon which an enzyme acts.

Front

What is the active site of an enzyme?

Back

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

Front

How do enzymes affect the rate of chemical reactions?

Back

Enzymes increase the rate of chemical reactions by providing an alternative pathway with a lower activation energy.

Front

What is a catalyst?

Back

A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.

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, changing its shape.