ISB 202 10-23-08 - ISB 202 10-23-08 Lack of sensitivity to...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ISB 202 10-23-08 Lack of sensitivity to antibiotics is a big problem Virus-non-cellular, non-living infectious particle o Has the following parts : A. nucleic acid (either DNA or RNA) Single or double strand of either (not both) B. usually coated with protein (may be naked) C. may be surrounded by an envelope o It cannot multiply by itself It must get a host cell to do it. Fortunately for us it requires a specific type of cell found only in certain species o Virus cannot be killed but can be deactivated o All of viruses parts are proteins o Where did viruses get that name??? o How do they multiply? 1. Virus attaches to host cell. Inserts DNA or RNA into cell 2. Virus uses host cells machinery to reproduce DNA/RNA and proteins 3. Virus assembles protein coat, DNA/RNA, and attaches protein tails (if part of the virus) o Virus makes enzymes that rupture the cell membrane, and the cell lyses (splits open) o The virus is released o If the virus has an envelope this is when the virus gets it from the host cell o The cells die o This is the lytic pathway of multiplication o There is another way viruses multiply This is the lysogenic pathway of multiplying...
View Full Document

This note was uploaded on 04/21/2011 for the course ISB 202 taught by Professor Johnson during the Fall '08 term at University of Michigan.

Page1 / 5

ISB 202 10-23-08 - ISB 202 10-23-08 Lack of sensitivity to...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online