Microorganisms Flashcards
Nutritional categories, disease causing microorganisms, basic life requirements
BS1040
What do dermatophyte infections grow on?
Keratin
BS1040
What organism causes thrush?
Candida Albicans
BS1040
What are halophiles adapted to?
Salty conditions
BS1040
What is the difference between the endogenous and exogenous route?
Endogenous - Already in the body and infects when there is a change in the internal environment
Exogenous - Contracted externally from someone/something
BS1040
What organism causes pneumonia and where does it grow?
Pneumocystis carinii, intracellularly
BS1040
What does a catalase-positive test determine about an organism?
It needs oxygen to live
BS1040
What parasite causes malaria and what is the common vector for it?
Plasmodium parasite, female mosquito is the vector
BS1040
What organism can T.gonii go through its sexual stage in?
Cats
BS1040
What are two features of anoxygenic photo-tropism?
Uses bacteriochlorophyll and has one reaction centre
BS1040
What are the five anoxygenic prokaryotes?
Heliobacteria Purple sulphur Purple non-sulphur Green sulphur Green non-sulphur
BS1040
What does PAME stand for and what microorganism can cause it?
Primary Amoebic Meningoencephalitis caused by Naegleria
BS1040
What do antifungal drugs typically target?
Cell wall integrity
Cell wall biosynthesis
RNA synthesis
BS1040
What do fungi have in their cell walls?
Chitin
BS1040
βAn organism that can respire aerobically in the presence of oxygen but is capable of switching to fermentation or anaerobic respiration if oxygen is absent.β What is this defining?
Facultative anaerobe
BS1040
What is the difference between a chemoheterotroph and a chemoautotroph?
Chemoheterotrophs use chemical energy and existing sources of carbon
Chemoautotrophs use chemical energy and light energy