MIP 300 Test with Questions and Verified
Answers
What components of the peptidoglycan can be altered to change the thickness of
a gram-negative peptidoglycan layer?
a. the number of NAG and NAM sheets
b. the type of amino acids in the interbridge
c. the number of amino acids in the interbridge
d. a and b
e. a and b and c - ✔✔a
What components of the peptidoglycan can be altered to change the thickness of
a gram-positive peptidoglycan layer?
a. the number of NAG and NAM sheets
b. the type of amino acids in the interbridge
c. the number of amino acids in the interbridge
d. a and b
e. a and b and c - ✔✔e
You do a Gram stain. You realize when you finish that you forgot to add Gram's
Iodine. What color will a Gram-positive cell be at the end of staining?
a. purple
b. pink
, c. colorless
d. brown - ✔✔b
You isolate a cell and find that is has 70S ribosomes. This cell could be...
a. prokaryotic
b. eukaryotic
c. either prokaryotic or eukaryotic - ✔✔c
plasmids are not required for bacterial cell growth or reproduction
a. true
b. false - ✔✔true
most spore-forming bacteria are Gram-positive
a. true
b. false - ✔✔true
Sporulation allows a bacterial cell to survive harsh conditions by causing it to
divide into two cells
a. true
b. false - ✔✔false
Answers
What components of the peptidoglycan can be altered to change the thickness of
a gram-negative peptidoglycan layer?
a. the number of NAG and NAM sheets
b. the type of amino acids in the interbridge
c. the number of amino acids in the interbridge
d. a and b
e. a and b and c - ✔✔a
What components of the peptidoglycan can be altered to change the thickness of
a gram-positive peptidoglycan layer?
a. the number of NAG and NAM sheets
b. the type of amino acids in the interbridge
c. the number of amino acids in the interbridge
d. a and b
e. a and b and c - ✔✔e
You do a Gram stain. You realize when you finish that you forgot to add Gram's
Iodine. What color will a Gram-positive cell be at the end of staining?
a. purple
b. pink
, c. colorless
d. brown - ✔✔b
You isolate a cell and find that is has 70S ribosomes. This cell could be...
a. prokaryotic
b. eukaryotic
c. either prokaryotic or eukaryotic - ✔✔c
plasmids are not required for bacterial cell growth or reproduction
a. true
b. false - ✔✔true
most spore-forming bacteria are Gram-positive
a. true
b. false - ✔✔true
Sporulation allows a bacterial cell to survive harsh conditions by causing it to
divide into two cells
a. true
b. false - ✔✔false
