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Online Microbiology Test - Microbiology Test - Random

Instruction:
  • This is a FREE online test. Beware of scammers who ask for money to attend this test.
  • Total number of questions: 20.
  • Time allotted: 30 minutes.
  • Each question carries 1 mark; there are no negative marks.
  • DO NOT refresh the page.
  • All the best!

Marks : 2/20

Total number of questions
20
Number of answered questions
0
Number of unanswered questions
20
Test Review : View answers and explanation for this test.
1.
The final electron acceptor in the electron transport chain is
CoQ
a cytochrome
FMN
oxygen
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Learn more problems on : Energy Release and Conservation
2.
A yeast or fungal cell produces how many net ATP molecules per molecule of glucose when completely oxidized?
32
34
36
38
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Learn more problems on : Energy Release and Conservation
3.
Which is most likely to be exposed on the surface of a gram-negative bacterium?
Pore protein (porin)
Protein involved in energy generation
Lipoteichoic acid
Phospholipids
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Learn more problems on : Bacteria Morphology
4.
During the carboxylation phase of the Calvin cycle, CO2 combines with
ribulose 1,5 - bisphosphate
phosphoglyceraldehyde
pyruvic acid
oxaloacetic acid
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Learn more problems on : Microbial Metabolism
5.
Incorporation of atmospheric N2to NH4+ occurs via the process of
assimilatory nitrate reduction
transamination
deamination
nitrogen fixation
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Learn more problems on : Microbial Metabolism
6.
Changes in which of the following characterizes mutations?
Phenotype
Genotype
Both (a) and (b)
None of these
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Learn more problems on : DNA Sequencing, Mutation and Repair
7.
Bacteria are
saprophytic
symbiotic
hyper parasitic
all of these
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Learn more problems on : Bacteria
8.
Which of the following is the commonest species of Salmonella for causing zoonotic disease?
S Indiana
S newport
S typhimurium
S enteritidis
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Learn more problems on : Spirochacter and Enterobacteriaceac
9.
Which of the following infection(s) can be caused by Pseudomonas aeruginosa?
Urinary tract infection
Wound and burn infection
Respiratory tract infection
All of these
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Learn more problems on : Pseudomonas and Burkholderia
10.
The amount of chitin in the cell walls of the Plasmodium
is greater than the water mold mycelium
is lesser than the water mold mycelium
is equal to the water mold mycelium
none of the above
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Learn more problems on : Fungi - Molds and Yeasts
11.
Organisms which have spore-forming stage in their life cycle and lack special locomotory organelles belong to which phylum of Protozoa?
Microspora
Myxozoa
Ciliophora
Apicomplexa
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Learn more problems on : Protozon
12.
Agar, which is the solidifying agent in many bacterial culture media, is part of the cell wall of
chlorophyta
chrysophyta
pyrrophyta
rhodophyta
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Learn more problems on : Algae
13.
The algae Chlamydomonas demonstrates a complex life cycle that switches between haploid and diploid forms. This life cycle is called
the sexual-asexual exchange
the transposition cycle
an alternation of generations
algal transformation
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Learn more problems on : Algae
14.
Lysozyme (an endolysin) which will lyse the bacterial cell, releasing the mature virions is present in
immediate early phage genes
late genes
delayed early genes
all of these
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Learn more problems on : Viruses
15.
Which of the following virus is transmitted by genital route?
Papillomaviruses
Herpes simplex virus type 2
Hepatitis B virus
All of these
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Learn more problems on : Viruses From Animal and Plants
16.
What is the shape of rabies virus?
Spherical
Polygonal
Bullet-shaped
Tubular
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Learn more problems on : Rhabdoviridae, Caliciviridae and Astroviridae
17.
HIV can infect
Microglial cells
M (membranous) cells
CD4 + T lymphocytes
All of these
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Learn more problems on : Retroviridae
18.
Which of the antibiotic is not used as a food preservative ?
Pimaricin
Nisin
Tylosin
β-lactam antibiotic
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Learn more problems on : Antimicrobial Chemotherapeutic Agents
19.
Which of the following protein synthesis mechanisms may be affected by particular drugs?
Peptide bond formation
mRNA translocation
Aminoacyl-tRNA binding
All of these
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Learn more problems on : Antimicrobial Chemotherapeutic Agents
20.
Why high concentration of sugars are not employed in the fermentation medium?
Calcium lactate is not produced
Calcium lactate crystallizes from the medium and slows down the process of fermentation
High sugar concentration itself crystallizes
None of the above
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Learn more problems on : Industrially Useful Microbial Processes
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