Flashcards in Bacteria Deck (44)
The ability to spread from one individual to others
Name a disease with high communicability. And low communicability.
Measles - High
HIV - Low
The ability of pathogens to induce an immune respone
The ability of the pathogen to invade and multiply in the host
Define Mechanism of Action
How microogranisms damage tissues
The ability of an agent to produce disease
Define portal of entry
The route by which a pathogenic microorganism infects the host
The ability of a pathogen to poduce soluble toxins or endotoxins
The capacity of a pathogen to cause severe disease
Name a disease with low virulence and high virulence
Measles - Low
Rabies - High
Benefits only the human; no harm to the microorganism
Benefits the human and the microorganism
Benefits the microorganism; no harm to the human
Define Pathogenicity (Relationship between pathogen and human)
Benefits the microorganism; harms the human
A situation in which benign microorganisms become pathogenic because of decreased human resistance
Name one common microorganism that uses opportunism to become pathogenic
Coccus bacteria are _____ in shape.
Staphylococci are arranged in _________.
Streptococci are arranged in __________.
Bacillus bacteria are ________ shaped.
Other than bacillus and coccus shaped bacteria, the 3rd shape of bacteria is _______.
What are the three biochemical and growth characteristics of bacteria.
1. Type of culture media
2. Oxygen Requirements
3. Nutritional requirements
Aerobic organism grow best in ___________.
The presence of O2
Anaerobic organisms grow best in the _________.
Absence of O2
Facultative Anaerobes grow _________
equally well with or without O2.
What is an antigen?
Your cells have coded this as "not you"
Where are antigens found?
Normal flora create a ________, which make it ________ for pathogens to _______.
layer of molecules
Normal flora work well by creating a higher _______________ (THINK ratio)