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

Types of Phosphorylation

Anatomy & Physiology

3. Energy & Cell Processes

Types of Phosphorylation

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Multiple Choice

Where do the phosphate groups come from that are added to proteins during phosphorylation?

NADH

ATP

FADH2

GTP

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Verified step by step guidance

Understand the process of phosphorylation: Phosphorylation is the addition of a phosphate group to a protein or other organic molecule, which can alter the function and activity of the molecule.

Identify the source of phosphate groups: In cellular processes, ATP (adenosine triphosphate) is the primary molecule that donates phosphate groups during phosphorylation.

Recognize the role of ATP: ATP is known as the energy currency of the cell. It has three phosphate groups, and when it donates one phosphate group, it becomes ADP (adenosine diphosphate).

Consider the alternatives: NADH, FADH2, and GTP are involved in other cellular processes, such as electron transport and energy transfer, but they are not the primary sources of phosphate groups for phosphorylation.

Conclude the source of phosphate groups: ATP is the correct answer because it directly provides the phosphate group needed for phosphorylation, which is a key regulatory mechanism in cellular activities.