BIO217

Category: BIO217

ATTENTION:

Kindly note that you will be presented with 50 questions randomized from the NOUN question bank. Make sure to take the quiz multiple times so you can get familiar with the questions and answers, as new questions are randomized in each attempt.

Good luck!

BIO217

1 / 50

A. The vegetative structure of a fungus is called a __________

2 / 50

B. A phase in the growth curve during which there is no increase in cell number of a microbial population is called ____________. phase

3 / 50

C. The most commonly used differential staining procedure is: ____________

1. Simple staining

2. differential staining

3. Gram staining

4. Acid fast staining

4 / 50

D. The most commonly used differential staining procedure is: __________

1. Acid fast staining

2. Simple staining

3. differential staining

4. Gram staining

5 / 50

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

1. Compound microscope

2. Simple microscope

3. Light microscope

4. Electron microscope

6 / 50

F. Which of the following genera of bacteria are aerobes or facultative anaerobes that from irregular clusters by dividing into two or more planes?

1. Peptococcus

2. Staphylococcus

3. Micrococcus

4. Streptococcus

7 / 50

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

1. Compound microscope

2. Simple microscope

3. Electron microscope

4. Light microscope

8 / 50

H. One of these is not an agricultural activity of microorganisms:

1. Production of ethanol

2. Biological central agents

3. Cycling of nutrients needed to maintain ecological balance

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

9 / 50

I. The acid used as a pharmaceutical to supply calcium to the body is: _________

1. Citric acid

2. Gubberellic acid

3. Gluconic acid

4. Lactic acid

10 / 50

J. Simple acellular entities that can only reproduce within living cells are called _________

11 / 50

K. Gram stain was developed in the year _________

12 / 50

L. Who supported the theory of spontaneous generation?

1. Louis Pasteur

2. Francesco Redi

3. Louis Jablot

4. John Needham

13 / 50

M. Alcoholic fermentation was found to be catalyzed by: __________

1. Living yeast cells

2. Catalase

3. Oxidase

4. Hydrogenase

14 / 50

N. Which of the following is not placed in any microorganism’s domain?

1. Viruses

2. Fungi

3. Algae

4. Protozoa

15 / 50

O. Based on the source of energy bacteria can be classified as phototrophs and _________

16 / 50

P. The class of microorganisms that has growth optima around 20 ۫C to 45 ۫C is __________

17 / 50

Q. Beijerinck and __________ pioneered the use of enrichment cultures and selective media.

18 / 50

R. ___________ coined the term cell.

19 / 50

S. Which of the following statements best describe transduction?

1. the formation of a new genotype by reassortment of genes

2. a mechanism of genetic transfer in which a bacterial virus transfer DNA from one cell to another

3. a genetic transfer process by which free DNA is incorporated into the recipient cell

4. a mechanism of genetic transfer that involves cell to cell contact

20 / 50

T. The first person to publish an extensive, accurate observation of microorganisms was ___________

21 / 50

U. Spoilage of meat and / or vegetables in cold syorage can be caused by some _________

22 / 50

V. A form of asexual reproduction process in which a single cell divides into two cells after developing a transverse septum is called ___________

23 / 50

W. Alcoholic fermentation was found to be catalyzed by __________

24 / 50

X. Which of the following disinfectants is used in food industries?

1. chlorine

2. aldehydes

3. ethylene

4. alcohol

25 / 50

Y. The formation of diphtheria tetanus antitoxins was induced by: ___________

1. Robert Koch

2. Edwards Jenner

3. Francesco Redi

4. Joseph Lister

26 / 50

Z. __________ is used to disinfect effluents from sewage treatment.

27 / 50

AA. Heat – sensitive liquids and gases are sterilized by the use of ___________ method

28 / 50

AB. A system of surgery designed to prevent microorganisms from entering wounds was developed by __________

29 / 50

AC. __________ is the simplest virus.

30 / 50

AD. A regular polyhedron with twenty equilateral triangle faces and twelve vertices is known as __________

31 / 50

AE. In food preparation, microbes are reduced to acceptable levels using methods such as addition of vinegar and ___________

32 / 50

AF. Which of the following is not a characteristic of the mycobacterium?

1. they are either anaerobes or preferentially anaerobic

2. they are either saprophytes or pathogens

3. they are acid fast

4. they are slightly straight or curved rods

33 / 50

AG. The acid used as a pharmaceutical to supply calcium to the body is: __________

1. Gubberellic acid

2. Citric acid

3. Gluconic acid

4. Lactic acid

34 / 50

AH. Another name for phenol is _________

35 / 50

AI. Bacteria were first discovered in the year __________

36 / 50

AJ. Which of the following groups of bacteria is not with unusual properties?

1. Archaeobacteria

2. Gliding non – fruiting bacteria

3. Spirochetes

4. Budding bacteria

37 / 50

AK. ___________ was awarded the 1905 nobel prize for physiology or medicine.

38 / 50

AL. Which one of the following is not an agricultural activity of microorganisms?

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

2. Cycling of nutrients needed to maintain ecological balance

3. Biological central agents

4. Production of ethanol

39 / 50

AM. The Basidiomycota are known a _________ fungi.

40 / 50

AN. The microscope used in the examination of unstained organisms suspended in fields is called ________ microscope.

41 / 50

AO. ______________ is used for food preservation.

42 / 50

AP. The microscope used to study microbial motility and determining the shape of line cells is: __________

1. Scanning microscope

2. Transmission microscope

3. Phase contrast microscope

4. Dark field microscope

43 / 50

AQ. The process by which the internal and external structures of cells and microorganisms are preserved and fixed in a position is known as: _________

1. Stained smears of microorganism

2. Hanging drop technique

3. staining of specimens

4. Fixation

44 / 50

AR. ____________are large thick walled spores formed when the tips of two sexually compatible hyphae fuse together.

45 / 50

AS. Cell division in Saccharomyces cerevisiae occur by _________

46 / 50

AT. Most microorganisms cannot be seen without ___________

47 / 50

AU. Human insulin and human growth hormone are produced by __________bacteria.

48 / 50

AV. The union of a special male structure called a spermatium with a female reproductive structure is called ___________

49 / 50

AW. Mutation can involve the ____of nucleotides. I. division , II. addition, III. deletion

1. II only

2. I only

3. III and II

4. I and II

50 / 50

AX. Systematic classification of fungi is based on sequence analtses of _________ RNA.

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