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

What protein is phosphorylated first during receptor tyrosine kinase (RTK) activation?

G-protein

Adenylate cyclase

Protein kinase A

The receptor itself

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Verified step by step guidance

Understand the role of receptor tyrosine kinases (RTKs) in cell signaling. RTKs are a type of cell surface receptor that, upon binding with a ligand, undergo autophosphorylation, which is the addition of phosphate groups to the receptor itself.

Recognize that the phosphorylation process is crucial for the activation of RTKs. This phosphorylation occurs on specific tyrosine residues within the receptor's intracellular domain.

Identify that the first protein to be phosphorylated during RTK activation is the receptor itself. This autophosphorylation is a key step that initiates downstream signaling pathways.

Consider the downstream effects of RTK activation. Once the receptor is phosphorylated, it can interact with various signaling proteins, leading to a cascade of cellular responses.

Reflect on the importance of RTK autophosphorylation in cellular communication and its implications in processes such as growth, differentiation, and metabolism.