2
Microbiology Lecture Exam #2
UAMS MICROBIOLOGY LECTURE EXAM #2
QUESTIONS | VERIFIED SOLUTION | UPDATED
VERSION 2026\27.
Most bacteria reproduce by
a) aerial hyphae
b) fragmentation
c) mitosis
d) binary fission
e) budding-CORRECT ANS d
An isolated colony on a streak plate could contain millions of identical cells.
true
false-CORRECT ANS true
Bacteria require nutrients from their environment to survive. Which of these
elements is not correctly matched with its function?
a) carbon: energy source and structural molecules
b) nitrogen: in amino acids
c) phosphorus: DNA, RNA, ATP
d) oxygen: necessary for carbohydrate metabolism-CORRECT ANS d
Pathogenic bacteria isolated from the respiratory tract of humans are most likely
a) strict aerobes that grow best in candle jars
b) capnophiles that grow best in carbon dioxide incubators
c) facultative anaerobes that require reducing media for growth
d) strict aerobes that grow best reducing media
e) capnophiles that prefer highly oxygenated growth conditions-CORRECT ANS b
A+ GRADED 1
, 2
Microbiology Lecture Exam #2
Salts and sugars work to preserve foods by creating a
a) depletion of nutrients
b) hypotonic environment
c) lower osmotic pressure
d) hypertonic environment
e) lower pH-CORRECT ANS d
The term aerotolerant anaerobe refers to an organism that
a) does not use oxygen but tolerates it
b) is killed by oxygen
c) uses oxygen or grows without oxygen
d) requires less oxygen than is present in air
e) requires more oxygen than is present in air-CORRECT ANS a
Which of the following is the best definition of generation time?
a) the length of time needed for lag phase
b) the length of time needed for a cell to divide
c) the minimum rate of doubling
d) the duration of log phase
e) the time needed for nuclear division-CORRECT ANS b
An experiment began with 4 cells and ended with 128 cells. How many generations
did the cells go through?
a) 64
b) 32
c) 6
d) 5
e) 4-CORRECT ANS d
A+ GRADED 2
Microbiology Lecture Exam #2
UAMS MICROBIOLOGY LECTURE EXAM #2
QUESTIONS | VERIFIED SOLUTION | UPDATED
VERSION 2026\27.
Most bacteria reproduce by
a) aerial hyphae
b) fragmentation
c) mitosis
d) binary fission
e) budding-CORRECT ANS d
An isolated colony on a streak plate could contain millions of identical cells.
true
false-CORRECT ANS true
Bacteria require nutrients from their environment to survive. Which of these
elements is not correctly matched with its function?
a) carbon: energy source and structural molecules
b) nitrogen: in amino acids
c) phosphorus: DNA, RNA, ATP
d) oxygen: necessary for carbohydrate metabolism-CORRECT ANS d
Pathogenic bacteria isolated from the respiratory tract of humans are most likely
a) strict aerobes that grow best in candle jars
b) capnophiles that grow best in carbon dioxide incubators
c) facultative anaerobes that require reducing media for growth
d) strict aerobes that grow best reducing media
e) capnophiles that prefer highly oxygenated growth conditions-CORRECT ANS b
A+ GRADED 1
, 2
Microbiology Lecture Exam #2
Salts and sugars work to preserve foods by creating a
a) depletion of nutrients
b) hypotonic environment
c) lower osmotic pressure
d) hypertonic environment
e) lower pH-CORRECT ANS d
The term aerotolerant anaerobe refers to an organism that
a) does not use oxygen but tolerates it
b) is killed by oxygen
c) uses oxygen or grows without oxygen
d) requires less oxygen than is present in air
e) requires more oxygen than is present in air-CORRECT ANS a
Which of the following is the best definition of generation time?
a) the length of time needed for lag phase
b) the length of time needed for a cell to divide
c) the minimum rate of doubling
d) the duration of log phase
e) the time needed for nuclear division-CORRECT ANS b
An experiment began with 4 cells and ended with 128 cells. How many generations
did the cells go through?
a) 64
b) 32
c) 6
d) 5
e) 4-CORRECT ANS d
A+ GRADED 2
