Ch 6 Intro to Energy, Enzymes, and Metabolism

Front

What does the first law of thermodynamics state?

Back

Energy is not created nor destroyed, but it can change from one energy form to another.

Front

Which molecules store solar energy during photosynthesis?

Back

ATP and NADPH.

Front

What characterizes an endergonic reaction?

Back

The products contain more energy than the reactants, and energy must be supplied.

Front

What is potential energy?

Back

Stored energy.

Front

What is competitive inhibition in enzyme activity?

Back

In competitive inhibition, the inhibitor binds to the active site of the enzyme.

Front

What is noncompetitive inhibition in enzyme activity?

Back

In noncompetitive inhibition, the inhibitor binds to an allosteric site, not the active site.

Front

What is irreversible inhibition in enzyme activity?

Back

A poison binds to the enzyme so that it can never work again.

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes act as catalysts to speed up reactions without being consumed.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy.

Front

What is ATP and its role in metabolism?

Back

ATP (adenosine triphosphate) is the primary energy carrier in cells.