1. Chapter 10 7 th Grade Test Review

2. Question 1 What does an antibiotic do? A. It treats bacterial and fungal infections. B. It treats viral infections. C. It provides immunity to smallpox. D. It makes milk safer to drink.

3. Answer A. It treats bacterial and fungal infections.

4. Question 2 Louis Pasteur killed bacteria using a. Heat b. Vaccines c. Smallpox d. immunity

5. Answer ► A. heat

6. Question 3 The first line of defense in your mouth is a. Darkness b. Noise c. Warmth d. enzymes

7. Answer D. Enzymes

8. Question 4 Most pathogens do not infect skin because a. They do not attack skin b. The skin is immune to them c. You can see them d. Dead skin cells carry them away

9. Answer

10. Question 5 One cause of noninfectious diseases is a. Dirty hands b. Genetic disorders c. Being around sick people d. Being sneezed on

11. Answer ► B. genetic disorder

12. Question 6 What normally destroys unregulated cells? a. Antibiotics b. Helper T cells c. Memory B cells d. Killer T cells

13. Answer

14. Question 7 Which of the following is NOT true of the immune system? a. It sends signals to the brain. b. It fights allergies. c. It consists of cells, tissues, and organs. d. It destroys infected cells

15. Answer b. It fights allergies

16. Question 8 People with AIDS have very few a. Cells b. Pathogens c. Helper T cells d. Memory B cells

17. Answer ► C. helper T cells

18. Vocabulary to Know Infectious and noninfectious disease Macrophagesallergyhelper T cells B cellsimmunitysalmonella Infectionantibioticplatelets Cancersneezing Be able to name three cells in the immune system and how they respond to pathogens