Biology 19.3

526 views

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
526
On SlideShare
0
From Embeds
0
Number of Embeds
4
Actions
Shares
0
Downloads
10
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Biology 19.3

  1. 1. 19.3 Diseases Caused by Bacteria and Viruses<br />
  2. 2. Pathogen<br />Disease-causing agent.<br />
  3. 3. Vaccine<br />A preparation of weakened or killed pathogens.<br />
  4. 4. Antibiotic<br />Compound that blocks the growth and reproduction of bacteria.<br />
  5. 5. Viroid<br />Single-stranded RNA molecule that has no surrounding capsids.<br />
  6. 6. Prion<br />Infectious particle made up of protein rather than RNA or DNA.<br />
  7. 7. Key Concept<br />How do bacteria cause disease?<br />Bacteria produce disease in one of two general ways. Some bacteria damage the cells and tissues of the infected organism directly by breaking down the cells for food. Other bacteria release toxins that travel throughout the body interfering with the normal activity of the host. <br />
  8. 8. Key Concept<br />How can bacterial growth be controlled?<br />There are various methods used to control bacteria growth, including sterilization, disinfectants, and food processing.<br />
  9. 9. Key Concept<br />How do viruses caused disease?<br />Like bacteria, viruses produce disease by disrupting the body’s normal equilibrium.<br />

×