Microbiology Quiz #2

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DylanJay05
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Last updated: May 4, 2024
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First submittedMay 4, 2024
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Name for cluster of flagellum
Lophotrichous
Name for flagellum spread over surface of a cell
Peritrichous
Name of a prokaryote which use organic compounds from their environment
Heterotroph
Name of a prokaryote which gains electrons from organic compounds
Organotroph
Bacteria. Gram positive rods, peritrichous flagella, facultative anaerobe, produces endospores and toxins, can cause food poisoning
Bacillus cereus
What is found above the layer of peptidoglycan in gram negative bacteria?
Outer membrane
Name of a prokaryote which gains energy from sunlight
Phototroph
Bacteria. Gram positive cocci in clusters, facultative anaerobe, commensal and pathogenic strains
Staphylococcus aureus
Bacteria. Gram negative rods, peritrichous flagella, facultative anaerobe, many strains are commensal, some are pathogenic
Escherichia coli
Type of horizontal gene transfer where plasmid is transferred from donor cell to recipient cell through the F-pilus
Conjugation
Which type of bacteria contains a thick layer of peptidoglycan?
Gram Positive
What can be found below the outer layer of peptidoglycan in gram positive bacteria?
Plasma membrane
Hint
Answer
Thin, thread like appendages which help bacteria adhere to surfaces
Fimbriae/Pilli
What is the most common method of replication for prokaryotes?
Binary Fission
Name of a prokaryote which uses carbon dioxide to make carbon compounds
Autotroph
What molecule is found in gram negative bacteria cell walls, which has a varying amount of uses including stabilizing structure and creating a permeability barrier?
LPS/Lipopolysaccharide
Archaea. irregular cell shape, anaerobic, non-motile methanogenic, lives in rumen of ruminant animals
Methanosarcina rumen
Archaea. cocci with glycoprotein S-layer and lophotrichous flagella, hyperthermophile, inhabits hydrothermal vents
Pyrococcus furiosus
Dormant, non growing structures which contain a copy of the genome, highly resistant to environmental stress
Endospore
What can be measured using a spectrophotometer to work out the number of cells in a culture?
Optical Density
Where is the respiratory chain found in prokaryotes?
Plasma membrane
Name of a prokaryote which gains energy from chemicals
Chemotroph
Name of a prokaryote which gains electrons from inorganic compounds
Lithotroph
What sized ribosomes are found in prokaryotes?
70S
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