Chapter 20 - Monera (bacteria) Flashcards
Micro-organisms
Small living things
Cell wall made of
Complex mixture of sugars and protein
Round bacteria
Pneumonia, sore throat, food poisoning
Rod-shaped bacteria
Tuberculosis, tetanus, botulism
Spiral bacteria (vibrio)
Syphilis, cholera
Pathogenic bacteria
Bacteria that cause disease
Antibiotics
Chemicals produced by micro-organisms that stop the growth of, or kill, other micro-organisms without damaging human tissues
Growth curve for bacteria phases
Lag -> log -> stationary -> death/decline -> survival
Batch culture
The growth of cells in a sealed container (or bioreactor) over a short period of time and under ideal conditions until all the nutrients are used up
Bioreactor
A vessel or container in which living cells or their products are used to make a product
Continuous flow food processing
The growth of cells in an open container (or bioreactor), where nutrients are added and the end products are removed all the time at a rate that maintains the volume of liquid and the number of cells