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
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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. Chrysolaminarin is the reserved food of ____________

A. Baccilariophycophyta

B. Xantophycophyta

C. Chlorophycophyta

D. Phaeophycophyta

2 / 40

2. Glycolysis can occur in _________

A. Neither aerobic cells not anaerobic cells

B. Anaerobic cells

C. Both aerobic and anaerobic cells

D. Aerobic cells

3 / 40

3. 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. Compound microscope

C. Electron microscope

D. Simple microscope

4 / 40

4. Who is known as the father of Microbiology?

A. Ferdinand Cohn

B. Robert Koch

C. Edwin John Butler

D. Antoni Van Leeuwenhoek

5 / 40

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

A. Pedoviridae

B. Microviridae

C. Corticoviridae

D. Styloviridae

6 / 40

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

A. psychophiles

B. mesophiles

C. hypothermophiles

D. thermophiles

7 / 40

7. Chemotrophs are:

A. Bacteria that derive their carbon from preformed organic nutrients

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

C. Bacteria that derive carbon from inorganic sources

D. Bacteria that use light energy as their energy source

8 / 40

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

A. Biological central agents

B. Cycling of nutrients needed to maintain ecological balance

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

D. Production of ethanol

9 / 40

9. Which of the following are produced by microorganisms?

A. Bread

B. Alcoholic beverages

C. Fermented diary products

D. All the options

10 / 40

10. Which among the following are microaerophilic bacteria?

A. Spirochaeta

B. Cristispira

C. Borrelia

D. Treponema

11 / 40

11. Tyrocidines are more effective against ____________

A. Gram-negative organisms

B. Spirochetes

C. Gram-positive organisms

D. Mycoplasms

12 / 40

12. Cryptococcosis is a disease of ______________

A. Viral infection

B. Parasitic infection

C. Bacterial infection

D. Mycotic infection

13 / 40

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

A. Lactic acid

B. Gubberellic acid

C. Citric acid

D. Gluconic acid

14 / 40

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

A. the organization of organisms into progressively more inclusive groups

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

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

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

15 / 40

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

A. Cytoplasm

B. Cell wall

C. Mitochondrial membrane

D. Cytoplasmic membrane

16 / 40

16. In bacterial cells, the capsules:

A. Enables individual cells to stay associated in cell colonies

B. Facilitates moderate change of position

C. Promote attachment of bacteria to surfaces

D. Increase surface area of the cell for nutrient absorption

17 / 40

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

A. Shift right

B. Shift down

C. Shift up

D. Shift left

18 / 40

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

A. Square

B. Circle

C. Vibrios

D. Spiral

19 / 40

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

A. gene association

B. gene transfer

C. recombination

D. mutation

20 / 40

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

A. 1860 - 1870

B. 1890 - 1900

C. 1880 - 1890

D. 1870 - 1890

21 / 40

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

A. Smallpox

B. Diarrhea

C. Whoooping cough

D. tuberculosis

22 / 40

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

A. It contains various enzymes involved in respiration and metabolism

B. It composed primarily of phospholipids and protein

C. The chromatin area is rich in DNA

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

23 / 40

23.

Table of Contents

What is the approximate size of the bacterial cell

A. 2mm in diameter

B. 0.5 - 1.0 micrometer in diameter

C. 1mm in diameter

D. 2 micrometer in diameter

24 / 40

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

A. Capsules

B. Flagella

C. Spores

D. Spores and crysts

25 / 40

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

A. Condenser lens

B. Objective lens

C. Eyepiece lens

D. Magnifying lens

26 / 40

26. Vaccination was invented by __________

A. Pasteur

B. Watson

C. Jenner

D. Crick

27 / 40

27. 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. microaerophile

B. obligate anaerobe

C. anaerobic

D. aerotolrant anaerobes

28 / 40

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

A. Biochemistry

B. Cytology

C. Genetics

D. Medicine

29 / 40

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

A. Electron beams and magnetic field

B. Magnetic fields

C. Electron beams

D. Light waves

30 / 40

30. Cellulose is degraded to cellobiose by the enzyme ________________

A. Beta-glucosidase

B. Hexokinase

C. Cellulase

D. Cellulose dehydrogenase

31 / 40

31. Protozoa that eat other organisms are known as _____________

A. Holozoic

B. Saprophytic

C. Parasitic

D. Mutualistic

32 / 40

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

A. microaerophile

B. obligate anaerobe

C. aerotolrant anaerobes

D. Anaerobic

33 / 40

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

A. Topography

B. Temperature

C. pH

D. Water activity

34 / 40

34. Which of the following inhibits DNA replication?

A. gamma rays

B. X rays

C. Cathode rays

D. UV light

35 / 40

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

A. Rabies

B. Mumps

C. Measles

D. Smallpox

36 / 40

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

A. Final treatment

B. Primary treatment

C. Advanced treatment

D. Secondary treatment

37 / 40

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

A. Malaria

B. Small pox

C. AIDS

D. Syphilis

38 / 40

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

A. 5

B. 4

C. 3

D. 6

39 / 40

39. What is Microbiology?

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

B. Study of animals and their family

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

D. Study of microscope

40 / 40

40. Acridine orange is which type of mutagen?

A. Intercalating agents

B. Base analog

C. Chemical compound

D. Transposons

Your score is

The average score is 45%

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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