Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

3. Energy & Cell Processes

Pyruvate Oxidation

Anatomy & Physiology

3. Energy & Cell Processes

Pyruvate Oxidation

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following is an activity of the pyruvate dehydrogenase complex?

Decarboxylation of pyruvate to acetyl-CoA

Conversion of acetyl-CoA to citrate

Phosphorylation of glucose to glucose-6-phosphate

Oxidation of NADH to NAD+

Previous problemNext problem

Verified step by step guidance

Understand the role of the pyruvate dehydrogenase complex (PDC) in cellular respiration. It is a crucial enzyme complex that links glycolysis to the citric acid cycle by converting pyruvate into acetyl-CoA.

Identify the main reaction catalyzed by the pyruvate dehydrogenase complex. The PDC facilitates the decarboxylation of pyruvate, which means it removes a carbon dioxide molecule from pyruvate.

Recognize that the decarboxylation of pyruvate results in the formation of acetyl-CoA, which is then used in the citric acid cycle to produce energy.

Differentiate between the activities listed in the problem. The conversion of acetyl-CoA to citrate occurs in the citric acid cycle, not by the PDC. Phosphorylation of glucose to glucose-6-phosphate is a step in glycolysis, and oxidation of NADH to NAD+ is part of the electron transport chain.

Conclude that the activity specific to the pyruvate dehydrogenase complex is the decarboxylation of pyruvate to form acetyl-CoA, as it directly involves the transformation of pyruvate into a form that can enter the citric acid cycle.