Enzymes

Front

What is a substrate?

Back

A substrate is any substance that is acted upon by an enzyme during a biochemical reaction.

Front

What is the role of an enzyme?

Back

An enzyme is a biological catalyst that speeds up chemical reactions in living organisms by lowering the activation energy required.

Front

What is activation energy?

Back

Activation energy is the minimum amount of energy required to initiate a chemical reaction.

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

How do enzymes affect reaction rates?

Back

Enzymes increase reaction rates by lowering the activation energy needed for the reaction to proceed.

Front

What factors can affect enzyme activity?

Back

Factors that can affect enzyme activity include temperature, pH, substrate concentration, and the presence of inhibitors or activators.

Front

What is an enzyme-substrate complex?

Back

An enzyme-substrate complex is the temporary molecule formed when an enzyme binds to its substrate.

Front

What is the difference between a coenzyme and a substrate?

Back

A coenzyme is a non-protein molecule that assists enzymes in catalyzing reactions, while a substrate is the substance that the enzyme acts upon.

Front

What happens to enzymes after a reaction?

Back

Enzymes are not consumed in the reaction; they can be reused multiple times to catalyze the same reaction.

Front

What is enzyme specificity?

Back

Enzyme specificity refers to the ability of an enzyme to select and catalyze a specific substrate among many possible candidates.