FUOYE MCB 102 CBT Practice : Undergragra

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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
Do not waste time on a question you don’t know
Move as fast as possible and starting with questions that don’t have calculation first to save time
Always crosscheck
Don’t be in a hurry to submit, you are not in a competition
Don’t be scared. Getting an A is easy
Don’t be over confident, you can end up a D, E or F. Calm your blood, no be only you sabi book
Please do well to use our comment box incase there’s a message you want to pass to us

70 – 100 A

60 – 69 B

50 – 59 C

45 – 49 D

40 – 44 E

0 – 39 F

I wish you success

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Created on July 29, 2023 By

Aruwaji Philip

MCB 102

1 / 40

1. 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. Light microscope

B. Electron microscope

C. Simple microscope

D. Compound microscope

2 / 40

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

A. Condenser lens

B. Magnifying lens

C. Eyepiece lens

D. Objective lens

3 / 40

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

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

B. The chromatin area is rich in DNA

C. It composed primarily of phospholipids and protein

D. It contains various enzymes involved in respiration and metabolism

4 / 40

4. What is the approximate size of the bacterial cell

A. 1mm in diameter

B. 0.5 - 1.0 micrometer in diameter

C. 2 micrometer in diameter

D. 2mm in diameter

5 / 40

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

A. 5

B. 4

C. 3

D. 6

6 / 40

6. Acridine orange is which type of mutagen?

A. Chemical compound

B. Transposons

C. Intercalating agents

D. Base analog

7 / 40

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

A. aerotolrant anaerobes

B. Anaerobic

C. microaerophile

D. obligate anaerobe

8 / 40

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

A. Diarrhea

B. Smallpox

C. Whoooping cough

D. tuberculosis

9 / 40

9. Chemotrophs are:

A. Bacteria that use light energy as their energy source

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

C. Bacteria that derive carbon from inorganic sources

D. Bacteria that derive their carbon from preformed organic nutrients

10 / 40

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

A. Biochemistry

B. Cytology

C. Genetics

D. Medicine

11 / 40

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

A. 1890 - 1900

B. 1860 - 1870

C. 1870 - 1890

D. 1880 - 1890

12 / 40

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

A. Measles

B. Smallpox

C. Mumps

D. Rabies

13 / 40

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

A. Citric acid

B. Gubberellic acid

C. Lactic acid

D. Gluconic acid

14 / 40

14. Tyrocidines are more effective against ____________

A. Gram-positive organisms

B. Spirochetes

C. Gram-negative organisms

D. Mycoplasms

15 / 40

15. 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. obligate anaerobe

B. microaerophile

C. aerotolrant anaerobes

D. anaerobic

16 / 40

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

A. hypothermophiles

B. psychophiles

C. mesophiles

D. thermophiles

17 / 40

17. Which of the following inhibits DNA replication?

A. gamma rays

B. UV light

C. Cathode rays

D. X rays

18 / 40

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

A. Circle

B. Spiral

C. Square

D. Vibrios

19 / 40

19. In bacterial cells, the capsules:

A. Enables individual cells to stay associated in cell colonies

B. Facilitates moderate change of position

C. Increase surface area of the cell for nutrient absorption

D. Promote attachment of bacteria to surfaces

20 / 40

20. Chrysolaminarin is the reserved food of ____________

A. Baccilariophycophyta

B. Xantophycophyta

C. Phaeophycophyta

D. Chlorophycophyta

21 / 40

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

A. gene association

B. gene transfer

C. recombination

D. mutation

22 / 40

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

A. Spores

B. Flagella

C. Capsules

D. Spores and crysts

23 / 40

23. Which of the following are produced by microorganisms?

A. Alcoholic beverages

B. Bread

C. All the options

D. Fermented diary products

24 / 40

24. 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

25 / 40

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

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

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

C. the organization of organisms into progressively more inclusive groups

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

26 / 40

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

A. Shift up

B. Shift right

C. Shift left

D. Shift down

27 / 40

27. Who is known as the father of Microbiology?

A. Robert Koch

B. Edwin John Butler

C. Antoni Van Leeuwenhoek

D. Ferdinand Cohn

28 / 40

28. Cryptococcosis is a disease of ______________

A. Viral infection

B. Mycotic infection

C. Parasitic infection

D. Bacterial infection

29 / 40

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

A. Light waves

B. Electron beams

C. Magnetic fields

D. Electron beams and magnetic field

30 / 40

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

A. pH

B. Topography

C. Water activity

D. Temperature

31 / 40

31. What is Microbiology?

A. Study of animals and their family

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

C. Study of microscope

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

32 / 40

32. Cellulose is degraded to cellobiose by the enzyme ________________

A. Cellulase

B. Cellulose dehydrogenase

C. Beta-glucosidase

D. Hexokinase

33 / 40

33. Glycolysis can occur in _________

A. Both aerobic and anaerobic cells

B. Anaerobic cells

C. Aerobic cells

D. Neither aerobic cells not anaerobic cells

34 / 40

34. Protozoa that eat other organisms are known as _____________

A. Parasitic

B. Saprophytic

C. Mutualistic

D. Holozoic

35 / 40

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

A. AIDS

B. Small pox

C. Malaria

D. Syphilis

36 / 40

36. 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

37 / 40

37. Vaccination was invented by __________

A. Pasteur

B. Watson

C. Crick

D. Jenner

38 / 40

38. Which among the following are microaerophilic bacteria?

A. Spirochaeta

B. Cristispira

C. Treponema

D. Borrelia

39 / 40

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

A. Cell wall

B. Cytoplasm

C. Cytoplasmic membrane

D. Mitochondrial membrane

40 / 40

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

A. Pedoviridae

B. Corticoviridae

C. Styloviridae

D. Microviridae

Your score is

The average score is 47%

4. What is the approximate size of the bacterial cell

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