AP Bio: Glycolysis Flashcard

Front

What is glycolysis?

Back

Glycolysis is a metabolic pathway that converts glucose into pyruvate, producing ATP and NADH in the process.

Front

What is the main purpose of glycolysis?

Back

The main purpose of glycolysis is to extract energy from glucose by breaking it down into pyruvate, which can then enter the Krebs cycle or fermentation.

Front

What is phosphorylation?

Back

Phosphorylation is the addition of a phosphate group to a molecule, often used to activate or deactivate enzymes.

Front

What is the role of NADH in glycolysis?

Back

NADH is produced during glycolysis and carries high-energy electrons to the electron transport chain (ETC) for ATP synthesis.

Front

What is the significance of glycolysis in evolution?

Back

Glycolysis allowed early organisms to generate energy from glucose in the absence of oxygen, making it a crucial evolutionary development.

Front

What is oxidation in biochemical terms?

Back

Oxidation refers to the loss of electrons from a molecule, often associated with the release of energy.

Front

What is reduction in biochemical terms?

Back

Reduction refers to the gain of electrons by a molecule, often associated with the storage of energy.

Front

Does glycolysis require oxygen?

Back

No, glycolysis is an anaerobic process and does not require oxygen.

Front

What are the end products of glycolysis?

Back

The end products of glycolysis are 2 molecules of pyruvate, 2 molecules of ATP, and 2 molecules of NADH.

Front

What is the role of ATP in glycolysis?

Back

ATP provides the energy needed to drive the reactions of glycolysis, particularly in the initial steps.