Slide 1 Slide 2 Microbial Models: Viruses and Bacteria AP Biology 1/08/03 Slide 3 Viruses and Bacteria Size comparison Discovery of viruses Science as a process Tobacco Mosaic…

Slide 1 Viruses & Bacteria Biology 20 This Powerpoint is hosted on www.worldofteaching.comwww.worldofteaching.com Please visit for 1000+ free powerpoints Slide 2 What…

Slide 1Viruses & Bacteria Chapter 20 Biology Slide 2 What are Viruses A virus is a non-cellular particle made up of genetic material and protein that can invade living…

Slide 1Viruses & Bacteria Slide 2 What are Viruses A virus is a non-cellular particle made up of genetic material and protein that can invade living cells. Slide 3 T4…

Slide 1Microbiology Jeopardy aka: Help, they’re all over me!! Slide 2 Stops bacteria growth by removing water. Slide 3 What is dehydration? Slide 4 Bacteria-like organisms…

Slide 1 Viruses – Cellular Pirates Adenovirus showing Varicella zoster virus icosahedral shape causes chickenpox Chicken Pox – contains an envelope – membrane taken…

Slide 1 Changes in bacterial traits Caused by: Changes in environmental conditions (only phenotypic changes) Changes in the genetic codes 1- Intermicrobial exchange 2- Mutations…

Slide 1 Viruses Slide 2 Virus – non-cellular particle made up of genetic material and protein. Reproduce only by infecting living cells. TMV – tobacco mosaic virus –…

Slide 1 Slide 2 Slide 3  Fossil evidence shows that bacteria have been on the earth for over 3.5 billion years  Three major shapes › Cocci (round) › Bacilli (rod-like)…

Slide 1 Chapter 19.1 & 19.3: Genetics of Viruses and Bacteria Slide 2 Structure and Genome of Viruses Viruses are smaller and more simple that prokaryotes Lack structures…