Microbiology Straighterline Exam With 100%
Correct And Verified Answers 2025
, Cell walls are not typically possessed by . - Correct Answer-protozoa
The two major groups of helminths are the and the . - Correct Answer-
roundworms; flatworms
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 - Correct Answer-Involves the action of
bacteriophage
Which of the following properties is likely to be found in a pioneer colonizer of a biofilm on an artificial
joint implant? - Correct Answer-Surface structures for attaching to tissue
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) . - Correct Answer-facultative anaerobe
An organic nutrient that cannot be synthesized by the organism and must be provided is called a(n)
. - Correct Answer-growth factor
Humans can see objects as small as 0.1 mm. Leeuwenhoek's best microscope could magnify objects to
300X. Which of the following would be invisible using Leeuwenhoek's microscope? - Correct Answer-
Poliovirus, 30 nm
Which of the following is not associated with every virus?
a. Envelope
b. Capsomeres
c. Capsid
d. Nucleic acid
e. Genome - Correct Answer-Envelope
A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the Last Universal
Common Ancestor would show Archaea - Correct Answer-branching off the Domain Eukarya.
During aerobic cellular respiration, the final electron acceptor is . - Correct
Answer-oxygen
The endosymbiotic theory has been developed to explain the emergence of .-
Correct Answer-eukaryotes
Correct And Verified Answers 2025
, Cell walls are not typically possessed by . - Correct Answer-protozoa
The two major groups of helminths are the and the . - Correct Answer-
roundworms; flatworms
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 - Correct Answer-Involves the action of
bacteriophage
Which of the following properties is likely to be found in a pioneer colonizer of a biofilm on an artificial
joint implant? - Correct Answer-Surface structures for attaching to tissue
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) . - Correct Answer-facultative anaerobe
An organic nutrient that cannot be synthesized by the organism and must be provided is called a(n)
. - Correct Answer-growth factor
Humans can see objects as small as 0.1 mm. Leeuwenhoek's best microscope could magnify objects to
300X. Which of the following would be invisible using Leeuwenhoek's microscope? - Correct Answer-
Poliovirus, 30 nm
Which of the following is not associated with every virus?
a. Envelope
b. Capsomeres
c. Capsid
d. Nucleic acid
e. Genome - Correct Answer-Envelope
A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the Last Universal
Common Ancestor would show Archaea - Correct Answer-branching off the Domain Eukarya.
During aerobic cellular respiration, the final electron acceptor is . - Correct
Answer-oxygen
The endosymbiotic theory has been developed to explain the emergence of .-
Correct Answer-eukaryotes
