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

2. Cell Chemistry & Cell Components

Types of Membrane Proteins

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Types of Membrane Proteins

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Multiple Choice

Which of these receptors is not a membrane receptor?

Ion channel receptor

G-protein coupled receptor

Enzyme-linked receptor

Nuclear receptor

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Verified step by step guidance

Understand the types of receptors: Receptors are proteins that receive and respond to chemical signals. They can be located on the cell membrane or inside the cell.

Identify membrane receptors: Membrane receptors are located on the cell surface and include ion channel receptors, G-protein coupled receptors, and enzyme-linked receptors. These receptors interact with extracellular molecules and transmit signals into the cell.

Define ion channel receptors: Ion channel receptors are membrane proteins that open or close in response to a ligand binding, allowing ions to pass through the membrane.

Define G-protein coupled receptors: G-protein coupled receptors are a large family of membrane receptors that activate G-proteins when a ligand binds, leading to various intracellular responses.

Define enzyme-linked receptors: Enzyme-linked receptors are membrane receptors that have an enzymatic activity or are associated with enzymes, and they initiate a signaling cascade upon ligand binding.

Clarify nuclear receptors: Nuclear receptors are not membrane receptors. They are located inside the cell, often in the cytoplasm or nucleus, and they bind to ligands that can cross the cell membrane, such as steroid hormones, to regulate gene expression.