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Microbiology Straighterline Final Exam – Verified Q&A (2025) – Complete Study Guide

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Prepare for your Microbiology Straighterline final exam with 100+ verified questions and answers. Covers cell biology, virology, metabolism, genetics, staining, and microbial classification. Updated for 2025.

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Microbiology straighterline
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Uploaded on
October 31, 2025
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Written in
2025/2026
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MICROBIOLOGY STRAIGHTERLINE TEST FINAL
EXAM
COMPLETE ACCURATE EXAM QUESTIONS WITH
DETAILED VERIFIED ANSWERS


1. Cell walls are not typically possessed by .

Answer> protozoa

2. The two major groups of helminths are the and the .

Answer> round- worms; flatworms

3. Which of the following is not true of conjugation?

a. Involves direct contact between cells

b. Transfers genes for drug resistance

c. Transfers genes for enzymes and adherence molecules

d. Involves the action of bacteriophage

e. The donor retains a copy of the transferred genes


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,Answer> Involves the action of bacteriophage

4. Which of the following properties is likely to be found in a pioneer colonizer of a

biofilm on an artificial joint implant?

Answer> Surface structures for attaching to tissue

5. A bacterium is inoculated into a tube of thioglycollate and incubated. After

incubation, turbidity appears throughout, top to bottom, with the greatest

turbidty at the very top.This bacterium would be called a(n) .

Answer> facultative anaerobe

6. An organic nutrient that cannot be synthesized by the organism and must be

provided is called a(n) .

Answer> growth factor

7. Humans can see objects as small as 0.1 mm. Leeuwenhoek's best micro- scope

could magnify objects to 300X.Which of the following would be invisible using

Leeuwenhoek's microscope?

Answer> Poliovirus, 30 nm

8. Which of the following is not associated with every virus?


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, a. Envelope

b. Capsomeres

c. Capsid

d. Nucleic acid

e. Genome

Answer> Envelope

9. A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from

the Last Universal Common Ancestor would show Archaea

Answer> branching off the Domain Eukarya.

10. During aerobic cellular respiration, the final electron acceptor is .-




Answer> oxygen

11. The endosymbiotic theory has been developed to explain the emergence of

.

Answer> eukaryotes

12. Which of the following is a unique characteristic of viruses that distin-


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