Table of contents

Skip topic navigation

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

Introduction to Cellular Respiration

Anatomy & Physiology

3. Energy & Cell Processes

Introduction to Cellular Respiration

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

In the context of cellular respiration, how is oxygen debt paid back after intense exercise?

By increasing the rate of glycolysis in muscle cells

By storing excess oxygen in muscle tissues

By converting lactic acid back into pyruvate in the liver

By producing more ATP through anaerobic pathways

Previous problemNext problem

Verified step by step guidance

Understand that during intense exercise, the body may not supply enough oxygen to the muscles, leading to anaerobic respiration and the production of lactic acid.

Recognize that 'oxygen debt' refers to the amount of extra oxygen the body needs after exercise to restore metabolic conditions to pre-exercise levels.

Identify that one way the body repays this oxygen debt is by converting lactic acid back into pyruvate, which can then enter the aerobic respiration pathway.

Note that this conversion primarily occurs in the liver, where lactic acid is transported from the muscles and converted back into pyruvate.

Acknowledge that this process requires oxygen, which is why increased oxygen intake after exercise helps in 'paying back' the oxygen debt.