Immunity: Chapter 03, Innate Immunity

Table of Contents

1. 3-1 Barriers to Infection at the Epithelium
2. 3-2 Innate Recognition by Soluble Collectins and Ficolins
3. 3-3 Overview of the Complement System
4. 3-4 Activation of the Complement Cascade
5. 3-5 Complement Effector Actions and Receptors
6. 3-6 Regulation of Complement and Evasion by Microbes
7. 3-7 Recognition of Microbes by Phagocytes
8. 3-8 Mechanisms of Phagocytosis
9. 3-9 Destructive Mechanisms of Phagocytes
10. 3-10 The Toll-Like Receptor Family of Innate Immune Receptors
11. 3-11 Toll-Like Receptor Signaling to Cytokine Production
12. 3-12 Intracellular Sensors of Bacterial Peptidoglycan Components
13. 3-13 Inflammation: Initiation of an Inflammatory Response
14. 3-14 Inflammation: Recruitment of Immune Cells
15. 3-15 Inflammation: Regulation and Systemic Effects
16. 3-16 Innate Defense Against Viruses: Interferon
17. 3-17 Inhibition of Virus Replication by Interferon
18. 3-18 Innate Defense Against Viruses: Induction of Apoptosis
19. 3-19 Intracellular Defenses Targeting Viral Nucleic Acid

3-18 Innate Defense Against Viruses: Induction of Apoptosis

Work through the following questions, checking all the correct answers. For each question there may be more than one correct answer.

1	Apoptosis through intrinsic pathways can be triggered in virus-infected cells by: a) unscheduled DNA synthesis. b) Bid. c) activation of p53. d) TNF. CorrectWrong: a and c are correct.Your answer has been saved.

2

Which of the following statements are true? a) Inhibition of protein synthesis by antiviral responses can trigger apoptotic death of the infected cell through activation of the TNF receptor. b) TNF induces the synthesis of antiapoptotic proteins. c) Fas and TRAIL induce apoptosis through the perforin-granzyme mechanism. d) TNF induces apoptosis in virus-infected cells. CorrectWrong: a b and d are true.Your answer has been saved.