Glycolysis & Kreb Cycle APB

Front

What happens to a molecule that functions as the reducing agent in a redox reaction?

Back

It loses electrons and loses potential energy.

Front

Which metabolic process occurs regardless of the presence of oxygen?

Back

Glycolysis.

Front

In the reaction Pyruvate + NADH + H+ → Lactate + NAD+, what is the oxidizing agent?

Back

Pyruvate.

Front

What type of metabolic poison would interfere with glycolysis?

Back

An agent that closely mimics the structure of glucose but is not metabolized.

Front

What is allosteric regulation in the context of enzyme activity?

Back

It is when a molecule binds to an enzyme at a different location from the active site, affecting its activity.

Front

What is glycolysis?

Back

A metabolic pathway that converts glucose into pyruvate, producing ATP and NADH.

Front

What is the main purpose of the Kreb Cycle?

Back

To generate energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins.

Front

What role does NAD+ play in glycolysis and the Kreb Cycle?

Back

NAD+ acts as an electron carrier, accepting electrons during metabolic reactions.

Front

What is the significance of phosphofructokinase in glycolysis?

Back

It is a key regulatory enzyme that controls the rate of glycolysis.

Front

How does high citric acid concentration affect glycolysis?

Back

It inhibits phosphofructokinase, demonstrating feedback inhibition.