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

ATP

Anatomy & Physiology

3. Energy & Cell Processes

ATP

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3:18 minutes

Problem 21

Textbook Question

What three components are required to create the high-energy compound ATP?

Verified step by step guidance

Understand that ATP (adenosine triphosphate) is a high-energy molecule used by cells to store and transfer energy.

Recognize that ATP consists of three main components: a nitrogenous base (adenine), a sugar molecule (ribose), and three phosphate groups.

Learn that the nitrogenous base adenine is a purine, which pairs with ribose to form adenosine, the backbone of ATP.

Understand that the three phosphate groups are connected by high-energy bonds, specifically the bonds between the second and third phosphate groups, which are key to ATP's energy storage and release.

Review how these components are assembled during cellular processes like phosphorylation, where energy is used to attach phosphate groups to adenosine, forming ATP.

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Key Concepts

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

Adenine

Adenine is a nitrogenous base that is one of the key components of ATP. It is a purine base that pairs with thymine in DNA and is essential for the structure of ATP, providing the necessary framework for energy storage and transfer.

Ribose

Ribose is a five-carbon sugar that forms the backbone of ATP. It connects the adenine base to the phosphate groups, playing a crucial role in the stability and functionality of the molecule, allowing it to participate in energy transfer within cells.

Phosphate Groups

ATP contains three phosphate groups linked by high-energy bonds. These phosphate groups are critical for ATP's role as an energy carrier, as the hydrolysis of these bonds releases energy that can be used for various cellular processes.