MB 351 Lecture 2

MB 351 Lecture 2 - Lecture 2 1. Know the major...

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

View Full Document Right Arrow Icon
Lecture 2 1. Know the major contributions Pasteur made to Microbiology: a. Observed that fermentation involved microorganisms (in absence of oxygen) i. Pasteurization is NOT sterilization, it controls the number of organisms that are present through brief heating that kills pathogenic MOs (slows spoilage) b. Spontaneous Generation i. Broth added to flask, neck bent, flask heated and boiled to sterilize contents ii. As broth cools MOs collect in bent neck iii. If broth put into contact with MOs in bent neck, growth occurs c. Vaccination i. Aged culture of chicken cholera injected into chicken-no immediate effect 1. Non-aged culture-chicken dies ii. Rabid dog saliva injected into rabbit-rabbit dies 1. Flesh from rabbit taken and boiled down can be used as a vaccine to rabies in humans 2. Know Koch’s 5 postulates and why the isolation of organisms in pure cultures is so important: a. Koch’s 5 Postulates i. The suspected agent must be present in every case of the disease ii. The suspected agent must be isolated in pure culture
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 03/25/2010 for the course MB 351 taught by Professor Keen during the Spring '08 term at N.C. State.

Page1 / 2

MB 351 Lecture 2 - Lecture 2 1. Know the major...

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