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

1. Introduction to Anatomy & Physiology

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Anatomy & Physiology

1. Introduction to Anatomy & Physiology

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Multiple Choice

Which of the following is the best example of a ligand that initiates cell communication by binding to a receptor on the cell surface?

Glucose

ATP

Insulin

DNA

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Verified step by step guidance

Understand the concept of a ligand: A ligand is a molecule that binds to a specific receptor on the surface of a cell to initiate a cellular response.

Identify the role of insulin: Insulin is a hormone that acts as a ligand by binding to insulin receptors on the cell surface, particularly on muscle and fat cells, to regulate glucose uptake.

Differentiate between the options: Glucose and ATP are not ligands that initiate cell communication by binding to cell surface receptors. Glucose is a simple sugar used for energy, and ATP is a molecule that provides energy for cellular processes.

Recognize the function of DNA: DNA is the genetic material within cells and does not function as a ligand for cell surface receptors.

Conclude that insulin is the best example of a ligand in this context, as it specifically binds to receptors on the cell surface to initiate a signaling cascade that affects cellular activity.