Microbiology Flashcards
Aerobic
Bacteria that required oxygen to grow
Anaerobic
Bacteria that does NOT require oxygen to live
Nucleus
The center of the cell that governs activity and heredity
Where is Pseudomons aeruginosa found
In water and soil; infections include UTI, respiratory system infections, dermatitis
What is microbiology
The study of nature, life & actions in microorganisms
Herpes simplex is what kind of disease ?
Viral disease
Spherical bacteria
Coccus
Rod bacteria
Bacillus
Prions are what ?
Abnormal, pathogenic proteins
Endospores are what
Microorganisms capable of forming a thick wall around themselves, enabling them to survive in hot and cold conditions
Two most common processes to classify bacteria by color change are what ?
Gram-stain
Acid-fast
Binary fission is what ?
The bacteria reproductive process in which a cell divides into two equal cells
Vegetative stage
State of growth for microorganisms; sunlight is lethal in this stage
What is a pathogen
A microorganism that can cause illness
What percent of bacteria is essential and beneficial to humans
95%
Gram-negative
Will not retain purple instead will show as pink. Does have an outer membrane
Ex; E-coli, salmonella. .
Gram-positive
Will retain the purple stain and have NO outer membrane.
ex: staphylococcus
PH is what ?
The measure of alkalinity or acid on a scale 0-14
7 is neutral
Above 7 is alkaline
Below 7 is acid
What is binary fusion
Method of bacterial reproduction in which a cell divides equally into 2 parts
What are the 4 modes of transfer?
Direct contract, indirect contract, airborne and droplet
