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Name of the organism that life began 3.5 billion yrs
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T/F: fungal disease is also called mycoses
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Unit 1 Exam Review

Clinical Microbiology

QuestionAnswer
Name of the organism that life began 3.5 billion yrs last common ancestor (LCS)
T/F: fungal disease is also called mycoses true
Humans are: eukaryotes
T/F: human cells have cell walls for support false; ONLY PLANTS
Which of these are ways fungi can be pathogenic -community acquired -opportunistic -hospital acquired
What is the purpose of lysosomes? digestion
T/F: ribosomes consist of RNA & protein true
T/F: yeast are filamentous thread-like fungi false (buds in oval shape)
Hyphae in fungus are thread-like branching cells found in filamentous fungi
Fungi produce which of these for reproduction spores
Which of these methods of microbe control uses the denaturization of proteins to kill microbes? heat
Which of these processes involves freeze-drying items to slow microbial growth & extend shelf life lyophilization
T/F: Milk is not sterile and will eventually spoil even if unopened true
Which of these is an example of chemical control of microbes chlorine
Which of these methods of microbe control involves osmotic pressure making jelly
This method of microbe control involves steam with a temp of up to 135C autoclaving
Which of these describes the principle to slow down microbial growth placing leftovers in fridge
T/F: microbistatic is the principle to slow microbial growth true
Gram positive bacteria will stain what color? purple
Gram negative bacteria will stain what color? pink/red
T/F: all bacteria have plasmids true
T/F: fimbriae are used to help bacteria cling to surfaces true
The purpose of flagella is for motility (movement)
Disinfection procedures must take into account -the mixture of microbes being targeted -whether the microbes in biofilms are dispersed -the amount of organic matter associated with the microbes
Microbial methods that sterilize kill endospores
Chemotaxis is the ability to move in response to a chemical
The identities of microorganisms on our planet are still mostly unknown
Which of these types of organisms is least likely to be identified to the genus level with light microscopy? bacteria
A fastidious organism must be grown on what type of medium? general purpose medium
Viruses are commonly grown in/on animal cells/tissues
Most of the time, microbes in natural circumstances exist in relationship with other species
Diagnosis of infections in a hospitalized person is often accomplished via -microscopy -culture of samples from pt
If gram stain result is unclear, which of the following should be considered? -get new sample -restaining same sample -identity of microbe may actually be gram-variable
Archae lack peptidoglycan
Bacterial endospores usually function in survival
Which structure plays a direct role in exchange of genetic material between bacterial cells? pilus
Nanotubes are extensions of the _________ that can function in _________ membrane, nutrient transfer
Which of these is true about biofilms? they complicate treatment of some infections
Mitochondria likely originated from bacteria
Yeasts are __ fungi, and molds are __ fungi unicellular, filamentous
The golgi apparatus modifies proteins
Fungi produce which of these structures for reproduction? spores
Which of these organisms has best potential to survive in extreme environments? fungi
Which of these groups causes most casualties on annual basis globally? protozoa
which is not useful to determine whether clinical isolate is bacterium, fungus, or protozoan? -size under light microsope -has a cell wall -can form protective structures under stress
DNA repair mechanisms can help alleviate effects of UV radiation
Cytoplasmic enzymes are most likely to be disrupted by high temp.
Transcription is targeted most directly by UV radiation
Sanitization is a process by which the microbial load on objects is reduced
The most versatile method for sterilizing heat-sensitive liquids is filtration
Which of the following is present in both gram positive & negative peptidoglycan
Created by: estephany15
 

 



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