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Glycolysis Quiz

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Questions and Answers

What is the primary function of glycolysis in cellular metabolism?

To synthesize fatty acids from acetyl-CoA

To perform oxidative phosphorylation

To convert glucose into pyruvate while generating ATP (correct)

To produce glucose from pyruvate

Which of the following molecules is an immediate product of glycolysis?

Pyruvate (correct)

Lactate

Glucose-6-phosphate

Acetyl-CoA

How many ATP molecules are net produced in the glycolysis process from one molecule of glucose?

0 ATP

2 ATP (correct)

6 ATP

4 ATP

Which enzyme catalyzes the first step of glycolysis?

<p>Hexokinase</p> Signup and view all the answers

What is the fate of pyruvate in anaerobic conditions after glycolysis?

<p>It is reduced to lactate</p> Signup and view all the answers

Study Notes

Glycolysis Overview

Glycolysis is a fundamental metabolic pathway that converts glucose into pyruvate, generating energy for cellular functions.
It occurs in the cytoplasm of the cell and is the first step in both aerobic and anaerobic respiration.

Immediate Product

The immediate product of glycolysis is pyruvate.

ATP Yield

The net production of ATP from one molecule of glucose during glycolysis is two ATP molecules, considering the two ATPs consumed and four ATPs produced.

Key Enzyme

The enzyme that catalyzes the first step of glycolysis is hexokinase, which phosphorylates glucose, making it more reactive.

Anaerobic Conditions

Under anaerobic conditions, pyruvate is converted into lactate in animals (lactic acid fermentation) or into ethanol and carbon dioxide in yeast (alcoholic fermentation), allowing for continued ATP production.

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Description

Test your knowledge on glycolysis, the metabolic pathway that converts glucose into pyruvate while producing ATP. This quiz covers the primary functions, products, and enzymes involved in glycolysis. See how well you understand this crucial process in cellular metabolism.