3.4 Cellular Energy

Front

What does the term 'endergonic' mean?

Back

Endergonic means that energy is consumed during the reaction.

Front

Which bond in the ATP molecule is broken to release energy?

Back

The bond between the second and third phosphate groups (the terminal phosphate bond) is broken.

Front

What type of reaction is ADP phosphorylation?

Back

ADP phosphorylation is an endergonic reaction.

Front

What is metabolism?

Back

Metabolism refers to all of the chemical reactions that occur within an organism.

Front

What is an example of a catabolic process?

Back

The digestion of sugar is an example of a catabolic process.

Front

What is the role of ATP in cellular energy?

Back

ATP serves as the primary energy carrier in cells, providing energy for various biochemical processes.

Front

What is the difference between catabolic and anabolic reactions?

Back

Catabolic reactions break down molecules to release energy, while anabolic reactions build up molecules and consume energy.

Front

What is the significance of the ATP-ADP cycle?

Back

The ATP-ADP cycle is crucial for energy transfer in cells, allowing for the regeneration of ATP from ADP and inorganic phosphate.

Front

What is an exergonic reaction?

Back

An exergonic reaction is a chemical reaction that releases energy.

Front

How does temperature affect enzyme activity in metabolic reactions?

Back

Temperature can affect enzyme activity; generally, higher temperatures increase activity up to a point, after which enzymes may denature.