Table of contents

1. Introduction to Anatomy & Physiology5h 40m
2. Cell Chemistry & Cell Components12h 37m
3. Energy & Cell Processes10h 7m
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 Blood1h 22m
18. The Heart1h 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 Balance Coming soon
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity Coming soon

3. Energy & Cell Processes

Introduction to Cellular Respiration

Anatomy & Physiology

3. Energy & Cell Processes

Introduction to Cellular Respiration

Problem 7a

Textbook Question

Cellular respiration involves . a. the aerobic metabolism of sugars in the mitochondria by a process called glycolysis; b. an electron transport chain that releases carbon dioxide; c. the synthesis of ATP, which is driven by the rushing of protons through an ATP synthase; d, electron carriers that bring electrons to the citric acid cycle; e. the production of water during the citric acid cycle

Verified step by step guidance

Identify the main components of cellular respiration: glycolysis, citric acid cycle, and electron transport chain.

Understand that glycolysis occurs in the cytoplasm and is anaerobic, not in the mitochondria.

Recognize that the electron transport chain is responsible for producing water, not releasing carbon dioxide.

Acknowledge that ATP synthesis is driven by protons moving through ATP synthase, which is part of the electron transport chain.

Note that electron carriers bring electrons to the electron transport chain, not the citric acid cycle.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Cellular Respiration

Cellular respiration is a biochemical process in which cells convert glucose and oxygen into energy, carbon dioxide, and water. It primarily occurs in the mitochondria and involves several stages, including glycolysis, the citric acid cycle, and oxidative phosphorylation. Understanding this process is crucial for grasping how cells generate ATP, the energy currency of the cell.

Glycolysis

Glycolysis is the first step of cellular respiration, occurring in the cytoplasm, where glucose is broken down into pyruvate, producing a small amount of ATP and NADH. This anaerobic process sets the stage for further energy extraction in the mitochondria. Recognizing glycolysis is essential for understanding how glucose metabolism initiates cellular respiration.

Electron Transport Chain

The electron transport chain (ETC) is a series of protein complexes located in the inner mitochondrial membrane that transfer electrons derived from NADH and FADH2. This process creates a proton gradient that drives ATP synthesis through ATP synthase. The ETC is vital for the efficient production of ATP and the overall energy yield of cellular respiration.