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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

Biological Membranes

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Biological Membranes

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Multiple Choice

Which of the following statements regarding the membrane on an enveloped virus is true?

The membrane is impermeable to all substances.

The membrane is composed entirely of viral proteins.

The membrane is synthesized by the virus independently of the host cell.

The membrane is derived from the host cell's plasma membrane.

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Verified step by step guidance

Understand that enveloped viruses have a lipid membrane surrounding their capsid, which is derived from the host cell.

Recognize that the viral envelope is not impermeable; it allows certain substances to pass through, facilitating viral entry and exit.

Acknowledge that the viral envelope is not composed entirely of viral proteins; it includes host cell lipids and proteins as well.

Clarify that the viral envelope is not synthesized independently by the virus; it is acquired from the host cell's plasma membrane during viral budding.

Conclude that the correct statement is that the membrane of an enveloped virus is derived from the host cell's plasma membrane, incorporating both viral and host components.