Enzymes

Front

What are enzymes?

Back

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

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

What is a substrate?

Back

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

Front

What is the optimum pH for an enzyme?

Back

The optimum pH is the pH at which an enzyme's activity is at its maximum.

Front

What happens to enzyme activity as temperature increases?

Back

Enzyme activity typically increases with temperature up to a certain point, after which it may denature and lose activity.

Front

What is denaturation in enzymes?

Back

Denaturation is the process where an enzyme loses its three-dimensional structure and, consequently, its functionality due to extreme conditions such as high temperature or pH.

Front

What role do enzymes play in metabolic pathways?

Back

Enzymes facilitate and regulate the biochemical reactions that occur in metabolic pathways, allowing for efficient energy production and utilization.

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, altering its function.

Front

What are the products of an enzyme-catalyzed reaction?

Back

The products are the molecules that result from the enzymatic conversion of substrates.

Front

How do enzymes lower activation energy?

Back

Enzymes lower activation energy by stabilizing the transition state and providing an alternative reaction pathway.