Microbiology 290 - WCU - Test Questions
and Correct Answers
Question 1
What are some harmful microbes that can be present in biofilms?
Correct Answer
Dental plaque, rocks in streams, soap scum on shower curtains, films on contact
lenses and storage case
Question 2
What is a virulence factor where proteins and enzymes are produced from a
pathogenic bacteria?
Correct Answer
Toxins
Question 3
Gram stain negative
Correct Answer
thin layer of peptidoglycan
LPS layer
stains pink
Question 4
What is pathogenicity?
Correct Answer
ability of a microorganism to cause disease
Page 1 of 90
,Question 5
What chemical was discovered as a method of chemotherapy?
Correct Answer
Penicillin by Fleming
Question 6
Krebs cycle in prokaryotes occurs in
Correct Answer
cytoplasm
Question 7
What is pili?
Correct Answer
hairlike structures that help bacteria stick to surfaces
Question 8
Krebs cycle in eukaryotes occurs in
Correct Answer
mitochondria
Question 9
What are some simple molecules?
Correct Answer
Fatty acids, amino acids, sugars, nucleotides
Question 10
What are the two processes by which glucose is catabolized?
Correct Answer
Cellular Respiration
Fermentation
Page 2 of 90
,Question 11
He discovered the 3 domain classification system
Correct Answer
Carl Woese
Question 12
Culture media types
Correct Answer
Defined
Complex
Selective
Differential
Anaerobic
Transport
Question 13
What is conjugation?
Correct Answer
transfer of DNA between bacteria using a pilus
Question 14
What is bacteremia?
Correct Answer
bacteria in the blood
Question 15
What is pathogenesis?
Correct Answer
the beginning of the disease process
Page 3 of 90
, Question 16
Psychrotolerants
Correct Answer
capable of growing at low temperatures but having an optimum above 20°C
Question 17
Chemotrophs use
Correct Answer
chemicals as energy sources
Question 18
Neutrophiles grow best in what range of pH
Correct Answer
Around narrow range and neutral pH
Question 19
Hyperthermophiles
Correct Answer
Organisms that grow in extremely high temperatures (90 degrees C)
Question 20
Thermophiles
Correct Answer
Archaea that thrive in very hot environments, such as volcanic springs. 65 degrees
Celsius
Page 4 of 90
and Correct Answers
Question 1
What are some harmful microbes that can be present in biofilms?
Correct Answer
Dental plaque, rocks in streams, soap scum on shower curtains, films on contact
lenses and storage case
Question 2
What is a virulence factor where proteins and enzymes are produced from a
pathogenic bacteria?
Correct Answer
Toxins
Question 3
Gram stain negative
Correct Answer
thin layer of peptidoglycan
LPS layer
stains pink
Question 4
What is pathogenicity?
Correct Answer
ability of a microorganism to cause disease
Page 1 of 90
,Question 5
What chemical was discovered as a method of chemotherapy?
Correct Answer
Penicillin by Fleming
Question 6
Krebs cycle in prokaryotes occurs in
Correct Answer
cytoplasm
Question 7
What is pili?
Correct Answer
hairlike structures that help bacteria stick to surfaces
Question 8
Krebs cycle in eukaryotes occurs in
Correct Answer
mitochondria
Question 9
What are some simple molecules?
Correct Answer
Fatty acids, amino acids, sugars, nucleotides
Question 10
What are the two processes by which glucose is catabolized?
Correct Answer
Cellular Respiration
Fermentation
Page 2 of 90
,Question 11
He discovered the 3 domain classification system
Correct Answer
Carl Woese
Question 12
Culture media types
Correct Answer
Defined
Complex
Selective
Differential
Anaerobic
Transport
Question 13
What is conjugation?
Correct Answer
transfer of DNA between bacteria using a pilus
Question 14
What is bacteremia?
Correct Answer
bacteria in the blood
Question 15
What is pathogenesis?
Correct Answer
the beginning of the disease process
Page 3 of 90
, Question 16
Psychrotolerants
Correct Answer
capable of growing at low temperatures but having an optimum above 20°C
Question 17
Chemotrophs use
Correct Answer
chemicals as energy sources
Question 18
Neutrophiles grow best in what range of pH
Correct Answer
Around narrow range and neutral pH
Question 19
Hyperthermophiles
Correct Answer
Organisms that grow in extremely high temperatures (90 degrees C)
Question 20
Thermophiles
Correct Answer
Archaea that thrive in very hot environments, such as volcanic springs. 65 degrees
Celsius
Page 4 of 90
