Straighterline microbiology BIO250 Topic 9: Graded Midterm Exam
Midterm Exam Questions and Answers (2025)
• BIO250_SL_V7
• Topic 9: Graded Midterm Exam
Started on Thursday, February 6, 2025, 4:30 PM
State Finished
Completed on Thursday, February 6, 2025, 5:09 PM
Time taken 38 mins 32 secs
Grade 170.00 out of 200.00 (85%)
Question 1
Correct
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Question text
Which domain do bacteria and archaea belong to?
Select one:
a.
Prokarya
b.
Animalia
c.
Fungi
d.
Eukarya
Question 2
Correct
,5.00 points out of 5.00
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Question text
Which of the following statements accurately describes the size and
structure of bacterial cells?
Select one:
a.
Bacterial cells are typically around 100 µm in diameter and are composed of
a membrane-bound nucleus.
b.
Bacterial cells are typically larger than eukaryotic cells and contain a true
nucleus.
c.
Bacterial cells are prokaryotic and have cell walls containing peptidoglycan,
with cell sizes typically around 1 µm.
d.
Bacterial cells are prokaryotic and lack a true nucleus, with most having cell
walls containing cellulose.
Question 3
Correct
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Question text
Which of the following roles do triacylglycerols primarily play in organisms?
Select one:
a.
Energy-storage molecules
b.
Structural components of membranes
c.
Enzymatic catalysts
d.
Hormonal messengers
Question 4
, Correct
5.00 points out of 5.00
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Question text
Match the following column.
Compound Description
A. Cholesterol 1. Compounds produced by bacteria
B. Hopanoids 2. Compound produced by fungi and some protozoa
3. Strengthen cell membranes in eukaryotes and
C. Ergosterol
Mycoplasma
Select one:
a.
A-3, B-1, C-2
b.
A-2, B-3, C-1
c.
A-1, B-2, C-3
d.
A-3, B-2, C-1
Question 5
Correct
5.00 points out of 5.00
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Question text
Where is the nucleoid region located in a prokaryotic cell?
Select one:
a.
Inside the nucleus
b.
Inside the endoplasmic reticulum
c.
In the cytoplasm
d.
Surrounding the mitochondria
Midterm Exam Questions and Answers (2025)
• BIO250_SL_V7
• Topic 9: Graded Midterm Exam
Started on Thursday, February 6, 2025, 4:30 PM
State Finished
Completed on Thursday, February 6, 2025, 5:09 PM
Time taken 38 mins 32 secs
Grade 170.00 out of 200.00 (85%)
Question 1
Correct
5.00 points out of 5.00
Flag question
Question text
Which domain do bacteria and archaea belong to?
Select one:
a.
Prokarya
b.
Animalia
c.
Fungi
d.
Eukarya
Question 2
Correct
,5.00 points out of 5.00
Flag question
Question text
Which of the following statements accurately describes the size and
structure of bacterial cells?
Select one:
a.
Bacterial cells are typically around 100 µm in diameter and are composed of
a membrane-bound nucleus.
b.
Bacterial cells are typically larger than eukaryotic cells and contain a true
nucleus.
c.
Bacterial cells are prokaryotic and have cell walls containing peptidoglycan,
with cell sizes typically around 1 µm.
d.
Bacterial cells are prokaryotic and lack a true nucleus, with most having cell
walls containing cellulose.
Question 3
Correct
5.00 points out of 5.00
Flag question
Question text
Which of the following roles do triacylglycerols primarily play in organisms?
Select one:
a.
Energy-storage molecules
b.
Structural components of membranes
c.
Enzymatic catalysts
d.
Hormonal messengers
Question 4
, Correct
5.00 points out of 5.00
Flag question
Question text
Match the following column.
Compound Description
A. Cholesterol 1. Compounds produced by bacteria
B. Hopanoids 2. Compound produced by fungi and some protozoa
3. Strengthen cell membranes in eukaryotes and
C. Ergosterol
Mycoplasma
Select one:
a.
A-3, B-1, C-2
b.
A-2, B-3, C-1
c.
A-1, B-2, C-3
d.
A-3, B-2, C-1
Question 5
Correct
5.00 points out of 5.00
Flag question
Question text
Where is the nucleoid region located in a prokaryotic cell?
Select one:
a.
Inside the nucleus
b.
Inside the endoplasmic reticulum
c.
In the cytoplasm
d.
Surrounding the mitochondria
