Flashcards in Bacteria and Culturing Deck (54)
Bacteria are between ____ microns in length
3 shapes of bacteria
1. Cocci (round)
2. Bacilli (rod)
3. Spirilli (spiral)
Bacteria are anucleated, or ________
Rigid, outer layer of a bacteria cell that gives it shape and protection
Most bacteria have cell walls, but what kind doesnt?
Selectively permeable that controls what enters and exits the bacteria cell
Part of the bacteria cell that contains nutrients and organelles
Site of cellular division in a bacteria cell
Gelatinous covering around the outside of the cell that helps the cell be antiphagocytic
Part of a cell used for locomotion
Facilitates the adherence of bacteria to mucous membranes
Makes the bacteria cell hard to kill by making it resistant to disinfection and helps the bacteria survive pasteurization
Ex: Clostridium piliforme
A source of energy for bacteria that comes from organic molecules
A source of energy for bacteria that is a biproduct of protein metabolism
What percentage of a bacteria cell's weight is water?
What is the optimal pH for bacterial growth?
Optimal temperature for bacterial growth?
Optimal temperature for pathogenic bacteria?
How do bacteria reproduce?
Binary fission (asexually)
Bacteria that grow well in the presence of O2
Bacteria that grow well with lack of O2
Bacteria that grow +/- O2
Bacteria that need a certain amount of O2
Bacteria that grows best at 20-40 celsius with optimal growth at 35-37 celsius
Most pathogenic bacteria
Cold loving bacteria that optimally grows at 0-30 Celsius
Hot loving bacteria that optimally grows at 40-80 Celsius
Survive pasteurization and hot springs
5 Body fluids/organs that should be sterile
4. synovial fluids
Good bacteria that produce vitamins and prevent dz
Normal flora can be found in 4 places
1. GI tract
2. upper respiratory tract
4. anterior urethra