🧪 Microbiology MCQ Quiz Hub

1. Gram positive bacteria
E.coli
Lactobacillus sp.
Pseudomonas sp.
All of the these

2. Which disease is caused by bacteria?
Tuberculosis
Cancer
Ringworm
All of the above

3. Microbiology is the study of
small animals
microscopic organisms
diseases
health

4. Gram staining is an example of
Acid fast staining
Simple staining
Negative staining
Differential staining

5. Which of these is responsible for catalyzing the formation of an rna primer?
enzyme
Primase
Formulation
All of the above

6. How do viruses reproduce
They take over the living cells machinery
They slide in the cell on their own
They can reproduce themselves
They put themselves in our bloodstream first

7. Expand MMR
Measles Mumps Rubella
Malaria malaria rhehasus
Monkey Month Resists
Mango mangi red

8. The bacterium that is most commonly used in genetic engineering is
E.coli
Klebsiella
Bacillus substilus
Staphylococcus auerus

9. What is ring worm caused by?
Virus
Bacteria
Fungi
Parasite

10. Most bacteria are
Harmful
Helpful
Begnin
Cancer

11. In electron microscope, what material is used as an objective lens?
Magnetic coils
Superfine glass
Electrons
Aluminium foils

12. What is the backbone of DNA made of?
Glucose and Nitrogen
Deoxyribose and Nitrogen
Deoxyribose and Phosphate
Deoxyribose and Sulfate

13. Aeromicrobiology refers to
Study of living microbes
study of Algae
Study of living microbes which are suspended in the air
none of the above

14. Why is Taq used in PCR?
It is a specific DNA Primer
It is a heat stable polymerase
It is specific to the target probe
It does not need a cofactor

15. What is RFLP used for?
Detecting PCR products
Amplify nucleic acids
Used for Eastern blot
Used for Eastern blot

16. How large are viruses ?
100-150 nm
300-600nm
20-200 nm
10-100nm

17. . What types of cells can Viruses infect
Only bacterial cells
Only animal cells
Only prokaryotic
ones all of them

18. Organisms referred to by both genus and specific epithet are both either:
underlined
italicized
bolded
Both A & B

19. Prokaryotes lack:
nucleus
flagella
cilia
cell wall

20. ___________ is the scientist who invented the system of nomenclature for microbes in use today.
Robert Hooke
Francesco Redi
Carolus Linnaeus
None of the above

21. A tapeworm lives in the intestines of its host. Which example best describes the relationship between the tapeworm and its host?
The tapeworm benefits from its host; however, the host is not affected.
The tapeworm does not benefit from its host, but the host does benefit.
The tapeworm benefits from its host, and the host is negatively affected.
None of the above

22. An organism that lives on or in a host, and causes it harm while it takes its nutrients is called
a host
a parasite
a cell
a virus

23. Viruses multiply:
By conjungation
By taking over a cell's functions
By binary fission
Both sexually and asexually

24. Immunology is the study of...
the immune system
bacteria
viruses
None of the above

25. Phycology is the study of...
fish
fungi
bacteria
algae

26. Mycology is the study of....
fungi
bacteria
viruses
dogs

27. When a virus invades a living cell, its _______takes over the cell's functions.
outer coat
genetic material
core
cytoplasm

28. ______________ are classified by their shape.
Bacteria
Flagella
Protists
Paramecium

29. Regarding exotoxins, which of the following is incorrect:
Can cause tetanus, diphtheria, and botulism
Vaccines are available
No Vaccines are available
They are heat sensitive

30. Which mechanism(s) allow microbes to avoid host defenses?
Creation of an actin tail to propel bacterium
Production of IgT proteases
Replication
All of the above

31. The most common way(s) for microbes to breach anatomical barriers are through:
Cuts and Wounds
Insects
Mucous Membranes
All of the above

32. ____ indicates viral particles are circulating in the bloodstream.
Viremia
Toxemia
IDKremia
Bacteremia

33. The duration of symptoms for Tuberculosis (TB) can be described as:
Acute
Chronic
Latent
Chronic and/or Latent

34. Although many individuals contributed, Louis Pasteur is often given credit for formation of which theory?
Miasma
Spontaneous Generation
Causation
Germ

35. Which of the following modes of transmission were discussed in class?
ingestion
airborne
vector
All of the above

36. This companies headquarters is located in Geneva, Switzerland.
WHO
CDC
BLHS
AARP

37. Any disorder that produces symptoms in specific locations that aren't a result of physical injury defines which term?
pathogen
disease
virulence
vector

38. This individual determined the causative agent of cholera.
John Snow
Louis Pasteur
Alexander Fleming
Robert Koch

39. This individual determined the causative agent of cholera.
John Snow
Louis Pasteur
Alexander Fleming
Robert Koch