Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 39m
3. Energy & Cell Processes10h 8m
4. Tissues & Histology10h 3m
5. Integumentary System2h 28m
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 System3h 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

21. The Immune System

Interferon Response

Anatomy & Physiology

21. The Immune System

Interferon Response

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Multiple Choice

Which of the following statements about interferon is incorrect?

It only works on enveloped viruses.

It decreases the spread of the virus.

It is a species-specific molecule.

It does not directly inactivate viruses.

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Verified step by step guidance

Understand the role of interferons: Interferons are proteins produced by host cells in response to viral infections. They play a crucial role in the immune response by interfering with viral replication and modulating the immune system.

Analyze the statement 'It only works on enveloped viruses': Interferons are not limited to working on enveloped viruses. They can act on a variety of viruses, regardless of whether they are enveloped or non-enveloped.

Consider the statement 'It decreases the spread of the virus': Interferons help to decrease the spread of viruses by inhibiting viral replication and activating immune cells that target infected cells.

Evaluate the statement 'It is a species-specific molecule': Interferons are indeed species-specific, meaning that human interferons work primarily in humans, and interferons from other species work in their respective species.

Examine the statement 'It does not directly inactivate viruses': Interferons do not directly inactivate viruses; instead, they trigger antiviral defenses in host cells, making it harder for viruses to replicate and spread.