STRAIGHTERLINE MICROBIOLOGY
2025/2026 Exam Questions with 100%
Correct Answers | Latest Update
Cell walls are not typically possessed by ______. - 🧠 ANSWER ✔✔protozoa
The two major groups of helminths are the ______ and the ______. - 🧠 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 - 🧠 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? - 🧠 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) ______. - 🧠 ANSWER
✔✔facultative anaerobe
An organic nutrient that cannot be synthesized by the organism and must be
provided is called a(n) ______. - 🧠 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? - 🧠 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 - 🧠 ANSWER ✔✔Envelope
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.
During aerobic cellular respiration, the final electron acceptor is ______. - 🧠
ANSWER ✔✔oxygen
The endosymbiotic theory has been developed to explain the emergence of
______. - 🧠 ANSWER ✔✔eukaryotes
Which of the following is a unique characteristic of viruses that distinguishes them
from the other major groups of microorganisms?
a. Cause human disease
b. Lack a nucleus
c. Cannot be seen without a microscope
d. Contain genetic material
e. Lack cell structure - 🧠 ANSWER ✔✔Lack cell structure
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
3
2025/2026 Exam Questions with 100%
Correct Answers | Latest Update
Cell walls are not typically possessed by ______. - 🧠 ANSWER ✔✔protozoa
The two major groups of helminths are the ______ and the ______. - 🧠 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 - 🧠 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? - 🧠 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) ______. - 🧠 ANSWER
✔✔facultative anaerobe
An organic nutrient that cannot be synthesized by the organism and must be
provided is called a(n) ______. - 🧠 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? - 🧠 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 - 🧠 ANSWER ✔✔Envelope
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.
During aerobic cellular respiration, the final electron acceptor is ______. - 🧠
ANSWER ✔✔oxygen
The endosymbiotic theory has been developed to explain the emergence of
______. - 🧠 ANSWER ✔✔eukaryotes
Which of the following is a unique characteristic of viruses that distinguishes them
from the other major groups of microorganisms?
a. Cause human disease
b. Lack a nucleus
c. Cannot be seen without a microscope
d. Contain genetic material
e. Lack cell structure - 🧠 ANSWER ✔✔Lack cell structure
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
3
