AP Biology- Enzymes and Energy

Front

What is the net intake of energy in a reaction?

Back

Endergonic reactions require energy input, resulting in a net intake of energy.

Front

What are enzymes made up of?

Back

Enzymes are made up of amino acids, which are the building blocks of proteins.

Front

Where is energy stored in ATP?

Back

Energy is stored in the bonds between phosphate groups in ATP.

Front

What type of reaction is represented by A + B --> AB + Energy?

Back

This is an exergonic reaction, which releases energy.

Front

How do enzymes work to increase reaction rates?

Back

Enzymes lower the activation energy of the reaction, facilitating a faster reaction rate.

Front

What is activation energy?

Back

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

Front

What is the difference between exergonic and endergonic reactions?

Back

Exergonic reactions release energy, while endergonic reactions require energy input.

Front

What role do enzymes play in biological reactions?

Back

Enzymes act as catalysts, speeding up reactions without being consumed in the process.

Front

What factors can affect enzyme activity?

Back

Factors include temperature, pH, substrate concentration, and the presence of inhibitors or activators.

Front

What is a substrate in the context of enzyme activity?

Back

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