Proteins and Enzymes

Front

What is a protein?

Back

A protein is a large, complex molecule made up of amino acids that performs a variety of functions in the body, including structural support, transport, and catalyzing biochemical reactions.

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes are biological catalysts that speed up chemical reactions in the body without being consumed in the process.

Front

What is a substrate?

Back

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

Front

What is a catalyst?

Back

A catalyst is a substance that increases the rate of a chemical reaction without undergoing any permanent chemical change.

Front

What is the active site of an enzyme?

Back

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

Front

What happens to a substrate after it binds to an enzyme?

Back

After binding, the substrate undergoes a chemical reaction and is transformed into products.

Front

What is the optimal temperature for enzyme activity?

Back

The optimal temperature is the temperature at which an enzyme is most active and catalyzes reactions most efficiently.

Front

What is denaturation in relation to enzymes?

Back

Denaturation is the process in which an enzyme loses its functional shape due to factors like extreme temperature or pH, rendering it inactive.

Front

How do pH levels affect enzyme activity?

Back

Each enzyme has an optimal pH range; deviations from this range can reduce enzyme activity or lead to 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, changing its shape.