TOPIC 2 - TOPIC 2: PROKARYOTES, VIRUSES, VIROIDS AND PRIONS...

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

View Full Document Right Arrow Icon
TOPIC 2: PROKARYOTES, VIRUSES, VIROIDS AND PRIONS Ch. 4 pp. 74-81, 98-99, Box 22a P. 697 THREE FUNDAMENTAL PROPOSITIONS The prokaryotes represent at least three very different types of cells Prokaryotes do not have a membrane-bounded nucleus Prokaryotes have a cell wall Viruses, viroids and prions are not alive There are immense differences within the prokaryotes. Indeed there are bigger differences between some types of bacteria i.e., Archaebacteria (methanogens, halophiles, thermoacidophiles) and Eubacteria , than exist between us and an amoeba! Indeed, there are bigger differences between halophiles and thermoacidophiles than between a protozoan and us. Think about it! This lecture explores some of the characteristics of prokaryotes and very briefly identifies viruses, viroids and prions. You need to know everything in the table below. Below the table are some questions you might use as starting points for your studies. That is, think about the questions as you study the material.
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/06/2008 for the course BIO 1140 taught by Professor Fenwick during the Winter '07 term at University of Ottawa.

Page1 / 2

TOPIC 2 - TOPIC 2: PROKARYOTES, VIRUSES, VIROIDS AND PRIONS...

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