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Diseases and Microbes – GK Quiz with Answers – Level 1

Basic GK questions on microbes and disease, from Jenner's smallpox vaccine and Rhizobium in legume roots to the microbes behind malaria, dengue and typhoid.

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Choose Normal practice or a Simulated test.

Questions, answer key and solutions.

Questions
50
Duration
25 min
Marks
50

Negative marking

Attempts
100
Access
Free
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Normal practice, or a Simulated test

Both use the same questions. Normal practice is untimed and needs no account: choose an option and the answer and solution appear at once. The Simulated test is the real computer-based format, with one 25-minute clock, a question palette and full screen, and your score, the key and the solutions arrive when you submit.

Open Normal practiceTake the Simulated test
How the two modes differ
No account needed

Normal

Untimed

Every question on one page, loading as you scroll. Choose an option and see straight away whether it was right.

  • No timer. Nothing to start and nothing to submit. Stop whenever you like.
  • Answered as you choose. Tap an option and it is marked at once, with the correct answer shown.
  • Solutions in place. The explanation, and the video where one has been added, sit under the question.
  • Open to guests. Normal practice needs no sign-in.
Real exam conditions

Simulated

Timed CBT

The computer-based test format: one clock, a question palette, and a score the moment you submit.

  • A clock that does not pause. 25 minutes from the moment you begin, and the paper is submitted for you when it reaches zero.
  • Question palette. Answered, not answered and marked for review, section by section, as the real interface has it.
  • Full screen, proctored. The test takes over the screen; leaving it three times submits the paper.
  • Answers hidden until you submit. The key, the explanations and your score all arrive together at the end.

About this test

Diseases and Microbes GK Level 1 Quiz: Pathogens, Carriers and Useful Microbes

Diseases and Microbes Level 1 is a beginner GK Biology set on microorganisms, the diseases they cause and the ways people use or control them. It covers bacteria, viruses, protozoa and fungi, disease carriers, early scientists, antibiotics and food preservation. Aptitude360 provides an explanation for every answer.

What this Diseases and Microbes Level 1 set covers

  • Disease-causing microbes: typhoid, cholera, polio, dengue, malaria and Kala-azar, and the microbe group behind each
  • Carriers: female Anopheles and Aedes mosquitoes, and houseflies that contaminate food
  • Useful microbes: Lactobacillus in curd, yeast in bread, and Rhizobium and blue-green algae fixing nitrogen
  • Scientists: Edward Jenner and the smallpox vaccine, Louis Pasteur and fermentation, Robert Koch and anthrax
  • Antibiotics and preservation: penicillin from mould, pasteurisation, sodium metabisulphite, and salt for meat and fish
  • Plant and animal diseases: citrus canker, rust of wheat, yellow vein mosaic and foot and mouth disease

Key microbiology facts for GK revision

  • Viruses reproduce only inside host cells, and antibiotics do not work against them
  • Acute diseases last a short time, while chronic diseases such as asthma last long
  • Rhizobium and leguminous plants share a symbiotic relationship
  • Japanese encephalitis is also called brain fever and spreads through mosquito bites

Study tips for microbes and diseases

  • Group diseases under bacteria, viruses, protozoa and fungi to answer causal agent questions faster
  • Pair each carrier with its disease, such as female Aedes with dengue
  • Link each preservative to its use, such as salt for meat and fish and sodium metabisulphite as a chemical preservative

Who this basics set suits

Students beginning General Awareness Biology for any competitive exam can use this set to build core facts on microbes and health.

FAQs about Diseases and Microbes – GK Quiz with Answers – Level 1

What are microbial diseases?
Microbial diseases are illnesses caused by microorganisms such as bacteria, viruses, protozoa and fungi. Examples include typhoid, polio, malaria and many skin infections.
List of microorganisms and their diseases
Bacteria cause typhoid, cholera and anthrax, and viruses cause polio, dengue and the common cold. Protozoa cause malaria and Kala-azar, and fungi cause rust of wheat and many skin infections.
How can diseases caused by microbes be prevented?
They can be prevented through vaccination, clean drinking water, proper hygiene and by controlling carriers such as mosquitoes and houseflies.
Why do antibiotics not work on the common cold?
The common cold is caused by a virus, and antibiotics act against bacteria, not viruses, so they have no effect on it.

Test structure

How the paper is split, and how long each part runs. A section you have finished cannot be returned to.

SectionQuestionsTime
Diseases and Microbes GK Level 15025 min

Marking & rules

Total marks
50 across 50 questions.
Negative marking
A wrong answer costs marks. Leaving a question unanswered costs nothing.
Attempts
100 in total. An attempt is spent the moment you begin one.

What you get when you submit

The analysis is ready the moment you submit the paper.

Score and accuracy

Marks, percentage, right, wrong and skipped, and the time you took.

Section by section

The same figures for each section, so a weak one cannot hide in an average.

The full answer key

Every question with your answer, the right one, the working, and the video where there is one.

Where you stand

Your score against the spread of everyone else who has sat this test.

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