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. Bacteria were first discovered in the year __________

2 / 50

B. Which of the following statements best describe transduction?

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

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

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

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

3 / 50

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

4 / 50

D. 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. Electron microscope

2. Light microscope

3. Simple microscope

4. Compound microscope

5 / 50

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

1. II only

2. I and II

3. III and II

4. I only

6 / 50

F. 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. staining of specimens

3. Hanging drop technique

4. Fixation

7 / 50

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

1. Catalase

2. Living yeast cells

3. Oxidase

4. Hydrogenase

8 / 50

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

9 / 50

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

10 / 50

J. 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

11 / 50

K. 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 slightly straight or curved rods

4. they are acid fast

12 / 50

L. 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

13 / 50

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

1. mesophiles

2. psychophiles

3. hypothermophiles

4. thermophiles

14 / 50

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

1. Gram staining

2. differential staining

3. Simple staining

4. Acid fast staining

15 / 50

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

1. Scanning microscope

2. Transmission microscope

3. Dark field microscope

4. Phase contrast microscope

16 / 50

P. ___________ are the most plentiful form of plankton in the Arctic.

17 / 50

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

1. Staphylococcus

2. Peptococcus

3. Micrococcus

4. Streptococcus

18 / 50

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

19 / 50

S. ___________ coined the term cell.

20 / 50

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

21 / 50

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

22 / 50

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

1. Budding bacteria

2. Gliding non – fruiting bacteria

3. Spirochetes

4. Archaeobacteria

23 / 50

W. Most microorganisms cannot be seen without ___________

24 / 50

X. Another name for phenol is _________

25 / 50

Y. Gram stain was developed in the year _________

26 / 50

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

27 / 50

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

28 / 50

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

29 / 50

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

30 / 50

AD. The vaccine for the disease anthrax was developed between the period:

1. 1860 - 1870

2. 1890 - 1900

3. 1880 - 1890

4. 1870 -1880

31 / 50

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

32 / 50

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

33 / 50

AG. ______________ is used for food preservation.

34 / 50

AH. 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. Light microscope

2. Electron microscope

3. Compound microscope

4. Simple microscope

35 / 50

AI. __________ is the simplest virus.

36 / 50

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

37 / 50

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

38 / 50

AL. Cell division in Saccharomyces cerevisiae occur by _________

39 / 50

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

1. Viruses

2. Fungi

3. Algae

4. Protozoa

40 / 50

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

41 / 50

AO. Who supported the theory of spontaneous generation?

1. Louis Jablot

2. John Needham

3. Louis Pasteur

4. Francesco Redi

42 / 50

AP. The Basidiomycota are known a _________ fungi.

43 / 50

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

1. Lactic acid

2. Citric acid

3. Gluconic acid

4. Gubberellic acid

44 / 50

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

45 / 50

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

1. Gram staining

2. differential staining

3. Simple staining

4. Acid fast staining

46 / 50

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

1. Production of ethanol

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

3. Biological central agents

4. Cycling of nutrients needed to maintain ecological balance

47 / 50

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

1. Edwards Jenner

2. Robert Koch

3. Joseph Lister

4. Francesco Redi

48 / 50

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

49 / 50

AW. Alcoholic fermentation was found to be catalyzed by __________

50 / 50

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

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