Microorganisms are intertwined into the fabric of our daily lives. Microbes can be found in soil, seawater, and the air, as well as on the human body's internal and external surfaces. Microorganisms are everywhere, but they're often overlooked because they're so common. However, their presence can be beneficial, such as when they ferment sugar into wine and beer, rise bread, flavor cheeses, and produce valuable products such as antibiotics and insulin. It is impossible to overestimate the importance of microorganisms in Earth's ecosystem since they break down animal and plant leftovers into simpler compounds that may be reused by other creatures.
History & Origin
A significant turning point in science was reached in the 17th century when it was discovered that organisms that could not be seen by the naked eye existed and were responsible for decay and disease. In the last quarter of the nineteenth century, these creatures were all assumed to be related and therefore the name "microbe" was developed to describe them. As the field of microbiology matured, scientists discovered that bacteria comprise a massive and incredibly varied assemblage
Meaning
When it comes to microbial life forms such as bacteria and fungus as well as viruses, microbiology is the study of microorganisms. Such creatures and the methods for utilizing and regulating their activity are at the heart of this branch of science.
Types of microorganisms
Most microorganisms fall into one of these broad classifications: bacteria, archaea, algae, fungus (yeasts and molds), protozoa, and viruses.
The study of microorganisms
The study of microorganisms may be classified into two broad, although occasionally overlapping, groups, as is the case in many other disciplines. It is distinct from fundamental microbiology, which focuses on microorganisms' biology, in that applied microbiology focuses on how microbes may be used to accomplish a specific goal.
Following are some of the multiple choice questions on the Microbiology with answers that will help the students in developing their knowledge.
Microbiology MCQ
1. Gram positive bacteria
2. Which disease is caused by bacteria?
3. Microbiology is the study of
4. Gram staining is an example of
5. Which of these is responsible for catalyzing the formation of an rna primer?
6. How do viruses reproduce
9. Bacteria come in all of the following shapes EXCEPT which?
10. The bacterium that is most commonly used in genetic engineering is
11. A slippery outer covering in some bacteria that protects them from phagocytosis by host cells is
12. The primary use of Koch postulates is to
13. What is ring worm caused by?
15. In electron microscope, what material is used as an objective lens?
16. What is the backbone of DNA made of?
17. Aeromicrobiology refers to
18. Prokaryotic and eukaryotic cells have many differences, but they also share some common features. Which of the following may be found in either type of cell?
19. Why is Taq used in PCR?
20. What is RFLP used for?
21. How large are viruses ?
22. What types of cells can Viruses infect
23. Bacteria do NOT have a cell wall.
True/ False:
24. Bacteria use appendages such as flagella to move around.
TRUE/ FALSE:
25. These are the major group of microbes
Check all that apply:
26. Fungi are considered to be prokaryotes.
TRUE/ FALSE:
27. Which of these can be referred to as being "strepto-" in terms of bacterial arrangement?
28. Organisms referred to by both genus and specific epithet are both either:
30. ___________ is the scientist who invented the system of nomenclature for microbes in use today.
31. A tapeworm lives in the intestines of its host. Which example best describes the relationship between the tapeworm and its host?
32. Microorganism that reproduces in the cells of other living things.
33. Organism that must live in another living thing in order to survive.
34. An organism that lives on or in a host, and causes it harm while it takes its nutrients is called
36. Immunology is the study of...
37. Phycology is the study of...
38. Mycology is the study of....
39. When a virus invades a living cell, its _______takes over the cell's functions.
40. _______________ are classified by their shape.
41. Regarding exotoxins, which of the following is incorrect:
42. Which mechanism(s) allow microbes to avoid host defenses?
43. The most common way(s) for microbes to breach anatomical barriers are through:
44. ___________ indicates viral particles are circulating in the bloodstream.
45. The duration of symptoms for Tuberculosis (TB) can be described as:
46. Normal Microbiota is not beneficial.
48. Although many individuals contributed, Louis Pasteur is often given credit for formation of which theory?
49. In what year did the World Health Organization declare the eradication of smallpox?
50. Which of the following modes of transmission were discussed in class?
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