Take your time to read instructions before taking this test.

There are 40 questions which you are to answer in 15 minutes that gives you roughly 30 seconds per question.

If you can get at least 60%, you can be rest assured that you’ll ace MCB 102 exam

In a normal exam you will be asked between 40 – 60 questions but I only arranged 40 questions

Note

Do not be in a hurry to answer the questions
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Move as fast as possible and starting with questions that don’t have calculation first to save time
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70 – 100 A

60 – 69 B

50 – 59 C

45 – 49 D

40 – 44 E

0 – 39 F

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Created on July 29, 2023 By

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MCB 102

1 / 40

1. Which of the following statements best describe the term systematics?

A. the organization of organisms into progressively more inclusive groups

B. a branch of taxonomy concerned with the assignment of names to taxonomic groups

C. the process of determining if a particular isolate belong to a recognized taxon

D. the scientific study of organisms with the ultimate objective of arranging them in an orderly manner

2 / 40

2. In which of the following treatment involve oxidation of organic constituents of the wastewater

A. Final treatment

B. Secondary treatment

C. Advanced treatment

D. Primary treatment

3 / 40

3. Who is known as the father of Microbiology?

A. Robert Koch

B. Antoni Van Leeuwenhoek

C. Edwin John Butler

D. Ferdinand Cohn

4 / 40

4. The following characterizes the cytoplasmic membrane except: _______.

A. It composed primarily of phospholipids and protein

B. It serves as a barrier to most water soluble molecules

C. It contains various enzymes involved in respiration and metabolism

D. The chromatin area is rich in DNA

5 / 40

5. Molds and yeasts are important research tools in the study of these fundamental processes except ___.

A. Biochemistry

B. Genetics

C. Medicine

D. Cytology

6 / 40

6. What is Microbiology?

A. Study of animals and their family

B. Study of microscope

C. Study of organisms that are not visible to the human eyes

D. Study of molecules that are visible to the human eyes

7 / 40

7. Which of the following classes of microorganisms has growth optima around 20 ۫ C to 45 ۫ C?

A. mesophiles

B. psychophiles

C. thermophiles

D. hypothermophiles

8 / 40

8. Which of the following inhibits DNA replication?

A. Cathode rays

B. X rays

C. UV light

D. gamma rays

9 / 40

9. Tyrocidines are more effective against ____________

A. Gram-negative organisms

B. Mycoplasms

C. Gram-positive organisms

D. Spirochetes

10 / 40

10. Organisms that are damaged by normal atmospheric level of oxygen and require oxygen level below the range of 2 to 10 % for are classified as:

A. aerotolrant anaerobes

B. anaerobic

C. obligate anaerobe

D. microaerophile

11 / 40

11. The acid used as a pharmaceutical to supply calcium to the body is _______.

A. Lactic acid

B. Gluconic acid

C. Gubberellic acid

D. Citric acid

12 / 40

12. Which was the first disease for which a chemotherapeutic agent was used?

A. AIDS

B. Malaria

C. Syphilis

D. Small pox

13 / 40

13. Which of the following occurs when a culture of microorganisms is transferred from a nutritionally poor medium to a richer one?

A. Shift down

B. Shift up

C. Shift right

D. Shift left

14 / 40

14. The following processes result in variation in microorganisms except _____.

A. recombination

B. mutation

C. gene association

D. gene transfer

15 / 40

15. Which of the following is used in electron microscope?

A. Electron beams and magnetic field

B. Electron beams

C. Light waves

D. Magnetic fields

16 / 40

16. Which of the following environmental factors does not influence microbial growth?

A. Temperature

B. Water activity

C. Topography

D. pH

17 / 40

17. Glycolysis can occur in _________

A. Both aerobic and anaerobic cells

B. Aerobic cells

C. Anaerobic cells

D. Neither aerobic cells not anaerobic cells

18 / 40

18.

Table of Contents

What is the approximate size of the bacterial cell

A. 1mm in diameter

B. 0.5 - 1.0 micrometer in diameter

C. 2mm in diameter

D. 2 micrometer in diameter

19 / 40

19. Which of the following deadly diseases cannot be prevented by vaccines?

A. Diarrhea

B. Smallpox

C. Whoooping cough

D. tuberculosis

20 / 40

20. The vaccine for the disease anthrax was developed between the period __

A. 1870 - 1890

B. 1860 - 1870

C. 1890 - 1900

D. 1880 - 1890

21 / 40

21. Chrysolaminarin is the reserved food of ____________

A. Xantophycophyta

B. Baccilariophycophyta

C. Phaeophycophyta

D. Chlorophycophyta

22 / 40

22. Cryptococcosis is a disease of ______________

A. Bacterial infection

B. Mycotic infection

C. Parasitic infection

D. Viral infection

23 / 40

23. Vaccination was invented by __________

A. Watson

B. Jenner

C. Pasteur

D. Crick

24 / 40

24. Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed?

A. Eyepiece lens

B. Objective lens

C. Condenser lens

D. Magnifying lens

25 / 40

25. A microscope in which the magnified image formed by the objective lens is further enlarged by one or more additional lenses is known as _______.

A. Electron microscope

B. Compound microscope

C. Simple microscope

D. Light microscope

26 / 40

26. Which of the following shapes can be assumed by a bacterium?

A. Vibrios

B. Square

C. Circle

D. Spiral

27 / 40

27. The following are external structure of a bacterial cell wall except ____.

A. Spores

B. Capsules

C. Flagella

D. Spores and crysts

28 / 40

28. Acridine orange is which type of mutagen?

A. Transposons

B. Chemical compound

C. Intercalating agents

D. Base analog

29 / 40

29. Bacteria are divided into _____ volumes based on Bergey manual of systematic bacteriology.

A. 5

B. 4

C. 6

D. 3

30 / 40

30. Chemotrophs are:

A. Bacteria that derive their carbon from preformed organic nutrients

B. Bacteria that derive carbon from inorganic sources

C. Bacteria that obtain their energy by oxidizing inorganic chemical compounds

D. Bacteria that use light energy as their energy source

31 / 40

31. Which of the following are produced by microorganisms?

A. All the options

B. Alcoholic beverages

C. Fermented diary products

D. Bread

32 / 40

32. To which of the following class of microorganisms does Enterococus faccalis belong?

A. obligate anaerobe

B. microaerophile

C. Anaerobic

D. aerotolrant anaerobes

33 / 40

33. For which viral disease, vaccine has been recently developed through the use of tissue culture?

A. Smallpox

B. Measles

C. Mumps

D. Rabies

34 / 40

34. The respiratory chain of bacteria is associated with the ______

A. Cell wall

B. Mitochondrial membrane

C. Cytoplasm

D. Cytoplasmic membrane

35 / 40

35. Which among the following are microaerophilic bacteria?

A. Spirochaeta

B. Cristispira

C. Treponema

D. Borrelia

36 / 40

36. Which of the following is a family of lambda phage viruses?

A. Styloviridae

B. Corticoviridae

C. Microviridae

D. Pedoviridae

37 / 40

37. Protozoa that eat other organisms are known as _____________

A. Mutualistic

B. Holozoic

C. Saprophytic

D. Parasitic

38 / 40

38. Cellulose is degraded to cellobiose by the enzyme ________________

A. Cellulase

B. Beta-glucosidase

C. Cellulose dehydrogenase

D. Hexokinase

39 / 40

39. The following are agricultural activities of microorganisms except _______.

A. Digestion of cellulose present in grasses on which ruminant animals feed

B. Biological central agents

C. Cycling of nutrients needed to maintain ecological balance

D. Production of ethanol

40 / 40

40. In bacterial cells, the capsules:

A. Increase surface area of the cell for nutrient absorption

B. Enables individual cells to stay associated in cell colonies

C. Promote attachment of bacteria to surfaces

D. Facilitates moderate change of position

Your score is

The average score is 47%

FUOYE MCB 102 CBT Practice

What is the approximate size of the bacterial cell

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What is the approximate size of the bacterial cell

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