Flashcards in Intro Material Deck (47):
How do bacteria reproduce?
What kind of cells are bacteria?
Prokaryotes (no nucleus)
What is a unique component of a bacterial cell wall?
What is a unique component of Gram Positive bacteria?
What id lipotichoic acid for?
What is a unique component of Gram Negative bacteria?
LPS in outer membrane
What are LPS for?
What is a unique component of mycobacteria?
What is mycolic acid for?
What endotoxin of LPS can activate the immune system and exert harmful effects on the host?
Lipid A component
What color do Gram-Negative bacteria stain?
What color do Gram-Positive bacteria stain?
Which bacteria have thick peptidoglycan layers?
Which bacteria have thin peptidoglycan layers?
What does acid fast staining detect?
What kind of cell wall does acid fast positive bacteria have?
Gram-Positive (thick peptidoglycan)
What color do acid fast positive organisms stain?
What color do acid fast negative organisms stain?
Located on the bacterial surface and used in locomotion/motility
Small thread-like structures on bacterial surface that facilitate adherence to the host tissue through specific receptors
Outer coating of the bacteria that helps the bacteria evade phagocytosis
Highly resistant dormant form of some gram-positive bacteria produced when adverse conditions exist
How can bacterial growth be measured?
Colony counting, turbidimetry, flow cytometry
Oxygen is required for growth
Oxygen is not required nor utilized for growth
Oxygen not required but can be utilized for growth
Produced by bacteria and released outside the cell to exert action on specific target cells
When are exotoxins released?
When bacteria are dead or killed
Produced by pathogenic microbes that are MHC-indiscriminate and result in massive cytokine release
Microbes come together in masses, cling to surfaces, and produce extracellular substances and take in nutrients
Bacteria are relatively innocuous as they quietly grow in number, and become overwhelmingly pathogenic when they reach a certain number
Smaller circular DNA present in bacteria
Virus particles that attack bacteria
How are virulence factors transferred between bacteria?
Conjugation, transformation, transduction
How are bacteria classified?
Evaluation of both genotypic and phenotypic properties
What are fungi?
Eukaryotic heterotrophs with a plant-like cell wall
All of the microbial cells present in a body
A microbe that can cause disease
Mechanisms by which the pathogen causes disease
Degree of pathogenicity, including severity
Properties or traits found in isolates that cause disease
What predisposes and animal to an infectious disease
The majority of bacteria are _____ pathogens
Host's response to presence of microorganisms or its products
Which bacteria does not have a cell wall?
Which bacteria has 2 circular chromosomes?