3.4 Cellular Energy

Front

What are the components of the ADP molecule?

Back

The ADP molecule is made up of adenine, ribose, and two phosphate groups.

Front

What characterizes an endergonic reaction?

Back

An endergonic reaction is characterized by a positive change in Gibbs free energy (ΔG > 0).

Front

What type of reaction is photosynthesis?

Back

Photosynthesis is an anabolic reaction, as it builds carbohydrates from CO2 and H2O.

Front

What does the term 'endergonic' mean?

Back

Endergonic means that energy is consumed during the reaction.

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 difference between anabolic and catabolic reactions?

Back

Anabolic reactions build larger molecules from smaller ones, while catabolic reactions break down larger molecules into smaller ones.

Front

What is the role of ATP in cellular energy?

Back

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

Front

How does energy flow in an ecosystem?

Back

Energy flows through an ecosystem from producers (like plants) to consumers (like animals) and eventually to decomposers.

Front

What is the significance of the ΔG value in biochemical reactions?

Back

The ΔG value indicates the spontaneity of a reaction; a negative ΔG means the reaction is spontaneous, while a positive ΔG means it is non-spontaneous.

Front

What is the process of cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.