bacteriologyToPost-2 - Lecture 2 January 11 Todays Outline...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 2: January 11 Today’s Outline Bacteriology What are germs Defenses against disease Bacterial vs human cells Announcements 1st Discussions this week Quiz on DF p. 1-64 Overrides this week
Background image of page 1

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

View Full DocumentRight Arrow Icon
What Causes Typhoid Fever Rod-shaped bacterium- salmonella typhi Grows in the small intestine Fecal contamination responsible for transmission Closely related to salmonella enterica Causes food poisoning
Background image of page 2
What are Bacteria?
Background image of page 3

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

View Full DocumentRight Arrow Icon
Three Basic Forms of Life Bacteria Germs and decomposers Archaea Less well known--usually in extreme places Eukarya Plants, animals, algae, fungi, amebas, etc.
Background image of page 4
Background image of page 5

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

View Full DocumentRight Arrow Icon
Amazing Facts about Microbes More than 5,000 species described but likely that tens of millions exist Number of bacteria that live in and on you vastly outnumbers the total cells in your body Dominant life form on earth may be a species of bacterial plankton (at surface of sea water) Found everywhere, in extreme habitats
Background image of page 6
Bacterial size variety, but typical ca. 1µm long 1µm = 10 -6 m = 0.000004inches 25,400 end to end per inch! feces is ca. 50% bacteria ca. 10,000,000,000 bacteria per gram (sugar cube size)
Background image of page 7

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

View Full DocumentRight Arrow Icon
Good Germs Nitrogen fixation Oxygen production Decompose organic material for recycling Otherwise it all ends up in the ocean Normal flora are protective Cleansing, digestive, protective Probiotics--heard of them?
Background image of page 8
Are Good Germs Located Everywhere in the Human Body?
Background image of page 9

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

View Full DocumentRight Arrow Icon
On the skin
Background image of page 10
Image of page 11
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/17/2011 for the course BIOLOGY 118 taught by Professor Spillane during the Winter '10 term at University of Michigan.

Page1 / 43

bacteriologyToPost-2 - Lecture 2 January 11 Todays Outline...

This preview shows document pages 1 - 11. Sign up to view the full document.

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