D311 Microbiology with Lab: A Fundamental Approach
LESSON QUIZZES AND SECTION TEST 2025 new solution
update Western Governors University
These are the questions for the lesson quizzes and section tests from the course material.
Please answer the questions, but also for each answer choice, explain why the choice is
correct or incorrect. For example, if the answer is B, please explain why B is correct and why
choices A, C, and D are incorrect, for each question. This will give you extra practice with
the material, which will help with synthesis and retention. An example of this process is
written below.
Which statement describes prokaryotic cells?
a. Prokaryotic cells are found in coccus form in both pairs and clusters.
This is the correct answer because prokaryotic cells can be found in coccus
form. Coccus-shaaped bacteria can be found as single cells, pairs, chains, or
clusters.
b. Prokaryotic cells have multiple rod-shaped chromosomes. This is not
correct because prokaryotic cells have one circular chromosome.
c. Prokaryotic cells are found in chains of rods but not single rods. This is
not correct because prokaryotic cells that are rod-shaped can be found in chains
or as single rods.
d. Prokaryotic cells have a nucleus surrounded by a complex nuclear
membrane. This is not correct because prokaryotic cells do not have a
nucleus. The chromosome is found in the cytoplasm with out a surrounding
membrane.
Section 1 Lesson 1 Quiz
1. Which statement describes prokaryotic cells?
a. Prokaryotic cells are found in coccus form in both pairs and clusters.
b. Prokaryotic cells have multiple rod-shaped chromosomes.
c. Prokaryotic cells are found in chains of rods but not single rods.
d. Prokaryotic cells have a nucleus surrounded by a complex nuclear membrane.
2. Which statement describes eukaryotic cells?
a. The exoskeletons of eukaryotic cells maintain and support the cells' shapes.
b. The nuclei of eukaryotic cells are surrounded by complex nuclear membranes.
c. The genomes of eukaryotic cells are usually packaged in single circular
chromosomes.
d. The organelles of eukaryotic cells are held in place by semipermeable exoskeletons.
3. Which statement describes eukaryotic flagella?
, a. Eukaryotic flagella can cover the entire surface of a cell.
b. Eukaryotic flagella are rotating structures.
c. Eukaryotic flagella have twelve pairs of microtubules.
d. Eukaryotic flagella are flexible, whip-like structures.
4. Which statement describes the endomembrane system?
a. It is attached to the smooth endoplasmic reticulum and makes proteins for insertion
into the cell membrane.
b. It includes the Golgi apparatus, lysosomes, and vesicles.
c. It is a system that uses diffusion to transport materials inside of the cell.
, d. It lacks membrane-bound organelles.
Section 1 Lesson 2 Quiz
1. Which statement accurately describes similarities between protozoa and fungi?
a. Both perform chemosynthesis.
b. Both can be harmful or harmless depending on the context.
c. Both are made of long filaments that form visible colonies.
d. Both move with help from cilia and flagella.
2. Why are algae considered photosynthetic organisms?
a. Algae cell walls are constructed with a material called peptidoglycan.
b. Algae contain substances that can be converted into biofuels.
c. Algae produce chemical energy from the sun's light energy.
d. Algae create waste products that other organisms can use to make energy.
3. Why are plasmids important to the survival of organisms?
a. Plasmids exclusively contain the genes responsible for cellular replication in
bacteria.
b. Plasmids can store excess nutrients in the cytoplasm of the cell.
c. Plasmids protect the bacterial genome in a dormant state during
unfavorable environmental conditions.
d. Plasmids carry genetic material, apart from the genome, that can benefit the
organism.
4. Which statement describes bacteria?
a. Some bacteria are eukaryotes.
b. Some bacteria have cell walls composed of mycolic acid.
c. Some bacteria are motile by cilia.
d. Some bacteria have cell walls composed of chitin.
Section 1 Lesson 3 Quiz
1. Which aspect of nutrient cycling is performed only by prokaryotes?
a. Respiration process
b. Carbon fixation
c. Nitrate assimilation
d. Nitrogen fixation
2. Which microbial process is useful in the production of alcoholic beverages?
a. Glucose fermentation
b. Gelatin hydrolysis
, c. Cysteine desulfuration
d. Lysine decarboxylation
LESSON QUIZZES AND SECTION TEST 2025 new solution
update Western Governors University
These are the questions for the lesson quizzes and section tests from the course material.
Please answer the questions, but also for each answer choice, explain why the choice is
correct or incorrect. For example, if the answer is B, please explain why B is correct and why
choices A, C, and D are incorrect, for each question. This will give you extra practice with
the material, which will help with synthesis and retention. An example of this process is
written below.
Which statement describes prokaryotic cells?
a. Prokaryotic cells are found in coccus form in both pairs and clusters.
This is the correct answer because prokaryotic cells can be found in coccus
form. Coccus-shaaped bacteria can be found as single cells, pairs, chains, or
clusters.
b. Prokaryotic cells have multiple rod-shaped chromosomes. This is not
correct because prokaryotic cells have one circular chromosome.
c. Prokaryotic cells are found in chains of rods but not single rods. This is
not correct because prokaryotic cells that are rod-shaped can be found in chains
or as single rods.
d. Prokaryotic cells have a nucleus surrounded by a complex nuclear
membrane. This is not correct because prokaryotic cells do not have a
nucleus. The chromosome is found in the cytoplasm with out a surrounding
membrane.
Section 1 Lesson 1 Quiz
1. Which statement describes prokaryotic cells?
a. Prokaryotic cells are found in coccus form in both pairs and clusters.
b. Prokaryotic cells have multiple rod-shaped chromosomes.
c. Prokaryotic cells are found in chains of rods but not single rods.
d. Prokaryotic cells have a nucleus surrounded by a complex nuclear membrane.
2. Which statement describes eukaryotic cells?
a. The exoskeletons of eukaryotic cells maintain and support the cells' shapes.
b. The nuclei of eukaryotic cells are surrounded by complex nuclear membranes.
c. The genomes of eukaryotic cells are usually packaged in single circular
chromosomes.
d. The organelles of eukaryotic cells are held in place by semipermeable exoskeletons.
3. Which statement describes eukaryotic flagella?
, a. Eukaryotic flagella can cover the entire surface of a cell.
b. Eukaryotic flagella are rotating structures.
c. Eukaryotic flagella have twelve pairs of microtubules.
d. Eukaryotic flagella are flexible, whip-like structures.
4. Which statement describes the endomembrane system?
a. It is attached to the smooth endoplasmic reticulum and makes proteins for insertion
into the cell membrane.
b. It includes the Golgi apparatus, lysosomes, and vesicles.
c. It is a system that uses diffusion to transport materials inside of the cell.
, d. It lacks membrane-bound organelles.
Section 1 Lesson 2 Quiz
1. Which statement accurately describes similarities between protozoa and fungi?
a. Both perform chemosynthesis.
b. Both can be harmful or harmless depending on the context.
c. Both are made of long filaments that form visible colonies.
d. Both move with help from cilia and flagella.
2. Why are algae considered photosynthetic organisms?
a. Algae cell walls are constructed with a material called peptidoglycan.
b. Algae contain substances that can be converted into biofuels.
c. Algae produce chemical energy from the sun's light energy.
d. Algae create waste products that other organisms can use to make energy.
3. Why are plasmids important to the survival of organisms?
a. Plasmids exclusively contain the genes responsible for cellular replication in
bacteria.
b. Plasmids can store excess nutrients in the cytoplasm of the cell.
c. Plasmids protect the bacterial genome in a dormant state during
unfavorable environmental conditions.
d. Plasmids carry genetic material, apart from the genome, that can benefit the
organism.
4. Which statement describes bacteria?
a. Some bacteria are eukaryotes.
b. Some bacteria have cell walls composed of mycolic acid.
c. Some bacteria are motile by cilia.
d. Some bacteria have cell walls composed of chitin.
Section 1 Lesson 3 Quiz
1. Which aspect of nutrient cycling is performed only by prokaryotes?
a. Respiration process
b. Carbon fixation
c. Nitrate assimilation
d. Nitrogen fixation
2. Which microbial process is useful in the production of alcoholic beverages?
a. Glucose fermentation
b. Gelatin hydrolysis
, c. Cysteine desulfuration
d. Lysine decarboxylation
