Outline for Material on Test 2- BY 261 Microbiology
This is a short outline to help you get your study notes in order. This is not an exhaustive list. If I discussed it
in class it is fair game for the test. Good Luck!
Chapter 5 Microbial Metabolism
Physical growth requirements Temperature, pH, osmotic pressure, etc.
Chemical growth requirement Water, carbon and nitrogen sources,
minerals, oxygen, organic growth factors.
Psychrophiles Cold-loving; grow best at 15-20 oC
Mesophiles Grow best between 2
- respiratory zone place of gas exchange
- ADS anatomical dead space area of no gas exchange
o nasal cavity, larynx, pharynx, trachea, primary and lobar bronchi
- respiratory tract has mucosa membrane
- upper respiratory tract has
All digestive structures have huge #s of bacteria EXCEPT: stomach and small intestine
40% of feces is bacteria
Large intestine can have up to 100 billion bacteria per gram of feces
Lactobacillus, Escherichia coli, Enterobacter, Klebsiella and P
Microbiology Test 2 Notes
Control of Microbial Growth
Proposed by Lister and Ignats Semmelweis
Autoclave- on PP.
Sepsis: Indicates bacterial contamination
Asepsis: Absence of significant contamination
Aseptic techniques: used to prevent
Microbiology Test 1 Notes
1. All living organisms are composed of one or more cells
2. The cell is the most basic unit of life
3. All cells arise from preexisting cells
- Abiogenesis: theory of spontaneous generation
- Living organisms can ar
Nerves Test (special sense organs)
1. A./B. The _ and _ compose the fibrous tunic of the eye.
2. A. What is the colored area of the eye surrounding the pupil?
B. This is highly vascularized and provides nutrients to the retina.
3. A. The _ is the space be
Microbicides for Prevention of HIV infection
Worldwide there are an estimated 42 million people living with
HIV/AIDS and more than 20