Reviewer/Study Guide- Chem of Life

Front

What do enzymes do in a chemical reaction?

Back

Enzymes lower the activation energy required for a chemical reaction to occur, thereby speeding up the reaction.

Front

Why did Reaction B work faster in Mark's graph?

Back

An enzyme was added to Reaction B, which increased the reaction rate.

Front

What additional components do nucleic acids have compared to carbohydrates?

Back

Nucleic acids contain a nitrogen base and a phosphate group, in addition to carbon, hydrogen, and oxygen.

Front

What is the role of an enzyme in a reaction studied by Marissa?

Back

The enzyme's role is to speed up the reaction.

Front

What type of molecule is being acted on by an enzyme that fits like a puzzle?

Back

The molecule being acted on is a protein.

Front

Define enzymes.

Back

Enzymes are biological catalysts that speed up chemical reactions by lowering the activation energy.

Front

What is activation energy?

Back

Activation energy is the minimum energy required for a chemical reaction to occur.

Front

How do enzymes affect the energy of reactants?

Back

Enzymes lower the energy barrier for reactants, allowing them to convert into products more easily.

Front

What is the significance of substrate concentration in enzyme activity?

Back

Increasing substrate concentration can increase the rate of reaction up to a point, after which the enzyme becomes saturated.

Front

What is a substrate in the context of enzyme activity?

Back

A substrate is the specific reactant that an enzyme acts upon.