Microorganisms MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Microorganisms, a fundamental topic in the field of Microbiology. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Microorganisms MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Microorganisms mcq questions that explore various aspects of Microorganisms problems. Each MCQ is crafted to challenge your understanding of Microorganisms principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Microbiology tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Microorganisms MCQs are your pathway to success in mastering this essential Microbiology topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Microorganisms. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Microorganisms knowledge to the test? Let's get started with our carefully curated MCQs!

Microorganisms MCQs | Page 16 of 25

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Q151.
Which of the following is/are vapour-phase disinfectant/s?

a.

Formaldehyde

b.

Ethylene oxide

c.

Both (a) and (b)

d.

None of these

Discuss
Answer: (c).Both (a) and (b)
Q152.
Sweet and salty foods frequently don't require refrigeration to prevent spoilage because they have

a.

insufficient nutrients

b.

low pH

c.

high concentration of solutes

d.

toxic alkaline chemicals

Discuss
Answer: (c).high concentration of solutes
Q153.
Iodophores are mixture of

a.

iodine and aldehydes

b.

iodine and surface active agents

c.

iodine and alcohols

d.

iodine and phenols

Discuss
Answer: (b).iodine and surface active agents
Q154.
Which of the following compounds are commonly used as general antiseptics to treat cuts and scratches?

a.

Aldehydes

b.

Ethylene oxide

c.

Halogens

d.

None of these

Discuss
Answer: (c).Halogens
Q155.
Complete destruction of the microorganisms is commonly known as

a.

disinfection

b.

sterilization

c.

antisepsis

d.

none of these

Discuss
Answer: (c).antisepsis
Q156.
The unifying feature of the archaea that distinguishes them from the bacteria is

a.

habitats which are extreme environments with regard to acidity

b.

absence of a nuclear membrane temperature

c.

presence of a cell wall containing a characteristic outer membrane

d.

cytoplasmic ribosomes that are 70S

Discuss
Answer: (b).absence of a nuclear membrane temperature
Q157.
Mycoplasmas are different from the other prokaryotes by

a.

presence of chitin in cell walls

b.

presence of murrain in cell walls

c.

presence of proteins in cell walls

d.

absence of cell wall itself

Discuss
Answer: (d).absence of cell wall itself
Q158.
Evolutionary relationships between groups of organisms are determined using which of the following type of information?

a.

Comparisons of nucleotide sequences

b.

Comparisons of biochemical pathways

c.

Comparisons of structural features

d.

All of the above

Discuss
Answer: (d).All of the above
Q159.
Which of the following is not true for eukaryotic cells?

a.

Nucleus is bounded by nuclear membrane

b.

Chromosomes contain histones

c.

Chloroplasts and mitochondria contains 70S ribosomes

d.

Gas vacuoles are present

Discuss
Answer: (d).Gas vacuoles are present
Q160.
Which of the following is not true for prokaryotic organism?

a.

Nucleus is not bounded by nuclear membrane

b.

Chromosomes does not contain histones

c.

80S ribosomes are distributed in cytoplasm

d.

Cell wall contains peptidoglycan as one of the major component

Discuss
Answer: (c).80S ribosomes are distributed in cytoplasm
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