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WGU D311: MICRO SECTION 1 EXAMINATION PRACTICE QUESTIONS AND CORRECT DETAILED ANSWERS LATEST UPDATE

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Describes prokaryotic cells. - ANS Prokaryotic cells are found in coccus form in both pairs and clusters. Describes eukaryotic cells. - ANS The nuclei of eukaryotic cells are surrounded by complex nuclear membranes. Describe eukaryotic flagella. - ANS Eukaryotic flagella are flexible, whip-like structures. Describe the endomembrane system. - ANS It includes the Golgi apparatus, lysosomes, and vesicles. Describe similarities between protozoa and fungi. - ANS Both can be harmful or harmless depending on the context. Why are algae considered photosynthetic organisms? - ANS Algae produce chemical energy from the sun's light energy. Why are plasmids important to the survival of organisms? - ANS Plasmids carry genetic material, apart from the genome, that can benefit the organism. Describe bacteria. - ANS Some bacteria have cell walls composed of mycolic acid. Which aspect of nutrient cycling is performed only by prokaryotes? - ANS Nitrogen fixation Which microbial process is useful in the production of alcoholic beverages? - ANS Glucose fermentation How does microbial bioremediation benefit the environment? - ANS By helping to metabolize and remove pollutants in the atmosphere. How is penicillin classified? - ANS As a natural antibiotic What describes the relationship of pathogens to virulence? - ANS Highly virulent pathogens almost always lead to a disease state when introduced to the body. What is the key difference between a primary pathogen and an opportunistic pathogen? - ANS Primary pathogens can infect anyone, whereas opportunistic pathogens can cause disease if the host is immunocompromised. How can disease expression be described? - ANS Signs and symptoms associated with illness can be a result of many things, including an immune response. What is the correct understanding of the median infectious dose? - ANS It's the number of pathogenic cells required to cause active infection in 50% of inoculated animals. Which structure aids in the evasion of phagocytosis by preventing immune cells from adhering to pathogens? - ANS Capsule

Content preview

K
C
LO
WGU D311: MICRO SECTION 1
EXAMINATION PRACTICE
YC
QUESTIONS AND CORRECT
DETAILED ANSWERS LATEST
D


UPDATE
U
ST

, Describes prokaryotic cells. - ANS Prokaryotic cells are found in coccus form in both
pairs and clusters.

Describes eukaryotic cells. - ANS The nuclei of eukaryotic cells are surrounded by
complex nuclear membranes.

Describe eukaryotic flagella. - ANS Eukaryotic flagella are flexible, whip-like
structures.

Describe the endomembrane system. - ANS It includes the Golgi apparatus,




K
lysosomes, and vesicles.




C
Describe similarities between protozoa and fungi. - ANS Both can be harmful or
harmless depending on the context.




LO
Why are algae considered photosynthetic organisms? - ANS Algae produce chemical
energy from the sun's light energy.

Why are plasmids important to the survival of organisms? - ANS Plasmids carry
genetic material, apart from the genome, that can benefit the organism.
YC
Describe bacteria. - ANS Some bacteria have cell walls composed of mycolic acid.

Which aspect of nutrient cycling is performed only by prokaryotes? - ANS Nitrogen
fixation
D


Which microbial process is useful in the production of alcoholic beverages? - ANS
U


Glucose fermentation

How does microbial bioremediation benefit the environment? - ANS By helping to
ST




metabolize and remove pollutants in the atmosphere.

How is penicillin classified? - ANS As a natural antibiotic

What describes the relationship of pathogens to virulence? - ANS Highly virulent
pathogens almost always lead to a disease state when introduced to the body.

What is the key difference between a primary pathogen and an opportunistic pathogen?
- ANS Primary pathogens can infect anyone, whereas opportunistic pathogens can
cause disease if the host is immunocompromised.

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