Metabolism Flashcard

Front

What is glycolysis in cellular respiration?

Back

Glycolysis is the anaerobic phase of cellular respiration that breaks down glucose into pyruvate, producing a small amount of ATP.

Front

What can result from imbalances in reaction rates within a cell?

Back

Imbalances in reaction rates can lead to cellular damage or death.

Front

What is negative feedback in metabolic pathways?

Back

Negative feedback occurs when the end product of a metabolic pathway inhibits the activity of a rate-limiting enzyme, regulating the pathway's activity.

Front

Where is chemical energy stored in cells?

Back

Chemical energy in cells is primarily stored in the form of ATP (adenosine triphosphate).

Front

Which of the following is NOT a common form of energy?

Back

Gravity is not considered a common form of energy in biological systems.

Front

What is the primary function of ATP in metabolism?

Back

ATP serves as the main energy currency of the cell, providing energy for various biochemical reactions.

Front

What is the role of enzymes in metabolic pathways?

Back

Enzymes act as catalysts that speed up chemical reactions in metabolic pathways by lowering the activation energy.

Front

What is a rate-limiting enzyme?

Back

A rate-limiting enzyme is an enzyme that regulates the speed of a metabolic pathway and determines the overall rate of the reaction.

Front

How does temperature affect enzyme activity?

Back

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

Front

What is the difference between aerobic and anaerobic respiration?

Back

Aerobic respiration requires oxygen and produces more ATP, while anaerobic respiration occurs without oxygen and produces less ATP.