enzyme review

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 are enzymes classified based on their role in the cell?

Back

Enzymes can be classified as catalysts because they accelerate chemical reactions without being consumed in the process.

Front

What is the primary function of enzymes in chemical reactions?

Back

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

Front

What statement best summarizes the role of enzymes in the cell?

Back

Enzymes control the rate and process of chemical reactions in our body by helping break and form chemical bonds.

Front

What is the definition of a catalyst?

Back

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

Front

What is the relationship between enzymes and activation energy?

Back

Enzymes lower the activation energy of a reaction, making it easier for the reaction to occur.

Front

What is the significance of the enzyme-substrate complex?

Back

The enzyme-substrate complex is formed when an enzyme binds to its substrate, facilitating the conversion of substrates into products.

Front

What factors can affect enzyme activity?

Back

Enzyme activity can be affected by temperature, pH, substrate concentration, and the presence of inhibitors or activators.

Front

What is an enzyme inhibitor?

Back

An enzyme inhibitor is a molecule that decreases enzyme activity by binding to the enzyme and preventing substrate binding.

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.