Micro - Final Flashcards
Microbial nutrients are categorized by?
Amount
Chemical Structure
Importance to the organism
What is a macronutrient?
Large amounts required, principal roles in cell structure and metabolism.
Small amount required for maintenance of bacterial structure and function is termed…
Microelements
T or F
Microorganisms are classified by chemical form of their nutrient
True
What is a Hetrotrophs
microorganisms that obtain carbon in the form of organic matter from the bodies of other organisms
These microorganisms obtain carbon from inorganic gas (co2) and have the special capacity to convert CO2 into organic compounds
Autotrophs
Name the 3 types of pyogenic cocci?
Staphyloccoci
Streptoccocci
Neisseria
List the Characteristics of Staphylococcus?
Non-motile Non-spore forming Irregular clusters Faculative Anaerobe Salt Tolerant Catalase-positive (has enzyme) Fermentative Pigmented large colonies
T or F
Staph Aureus is the most pathogenic of the pyogenic cocci
True
What type of infections will Staph aureus cause?
Local: skin and glands
Systemic: bone and joint
What is the most resistant of all non-spore forming pathogens?
Staph Aureus
Name the Virulence factors of Staph Aureus
Coagulase
Hyalurindiase
Staphylokinase
Nuclease
What is the most useful diagnostic enzyme?
Coagulase - coagulates plamsa and blood
Name the enzyme that digests blood clots
Staphylokinase
Name the cytotoxins of Staph Aureus
Hemolysin Leukocidin Entrotoxin Pyogenic toxic Exfoliative toxin
