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Chapter 3


Define Microbiology Microbiology is the branch of biology that deals with microorganisms and their effects on other living organisms
Define Pathogenic Disease Producing
How are microorganisms measured? In microns
Give examples of microorganisms: Bacteria, Viruses, Fungi, Protozoa, and Microscopic Algae
List the 2 groups of bacteria that gram stain divides: Gram Positive and Gram Negative Bacteria
Gram positive microorgainsms stain what color? Purple or Blue
Gram Negaive microorganisms stain what color? Pink or Red
What does gram staining help to determine? Gram staining helps to indentify the microorganism which can help determine which drug will be the most effective against the disease
How does bacteria reproduce? Binary Fissin (asexual reproduction)
List the basic requirments bacteria needs in order to survive: Warmth, Food, Water, Alkaline pH, Elimination of Waste, Oxygen, Subdued light or darkness.
Describe a spore: A spore are highly durable, dehydrated cells with thick cell walls that are hard adn shell like.
What does Aerobic bacteria require in order to survive? Oxygen
Define Microbacteria: Mycrobacteria are aerobic, non-spore-forming, non-moving, rod-shaped organisms.
Microbacterium Tuberculois is responsible for which disease? Tuberculosis
Microbacterium Leprae is responsible for which disease? Leprosy
Give examples of Gram Positive Cocci: Staphlococcus, Streptococcus, and Enterococcus
What is the persistant cause of healthcare aquired (nosicomial) infections? Staphylococcus aureus (MRSA)
What is a prion? An abnormal protein in the brain, leading to brain damage.
Give examples of diseases caused by prions: CJD, variant Creutzfeldt-Jacob Disease (vCJD), Gerstmann-Straussler-Scheinker syndrome, fatal familial insomnia, kuru
Where are spirochetes found? Water, sewage, soil, and decaying matter.
What is responsible for relapsing fever and Lyme Disease? genus Borrelia usually transmitted by ticks or lice
What requires a living organism to survive? Viruses
Give examples of viruses: AIDS, rabies, smallpox, poliomyelitis, measles, fever blisters, influenza, herpes, hepatitis A, B, and C, and the common cold.
What is the health care worker most likely to be exposed to in the health care work enviornment? Hepatitis C
What are single celled Microorganisms Protozoa
Created by: tlwatkins
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