AP Biology: Unit 4 Cellular Energetics (Ryan)

Front

What is energy coupling?

Back

The process of an endergonic reaction being fueled by an exergonic reaction.

Front

What happens to energy between photosynthesis and cellular respiration?

Back

Energy is used by cells and lost as heat to the environment.

Front

How does doubling the amount of enzyme affect free energy?

Back

It has no effect on free energy.

Front

What is oxidation?

Back

The loss of electrons.

Front

What must happen to maintain order in cellular processes?

Back

Energy input must exceed energy loss.

Front

What is an endergonic reaction?

Back

A reaction that requires energy input to proceed.

Front

What is an exergonic reaction?

Back

A reaction that releases energy.

Front

Define the first law of thermodynamics.

Back

Energy cannot be created or destroyed, only transformed.

Front

Define the second law of thermodynamics.

Back

In any energy transfer, the total entropy of a system and its surroundings always increases.

Front

What is ATP and its role in cellular energetics?

Back

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