MTSU Zamora Microbiology, test bank Questions With
Complete Solutions
Erlich Correct Answer 2) This person developed an organic
arsenical compound as an effective cure of syphilis: a)Erlich b)
Henle Lister e) Waxman
1 chromosome Correct Answer Prokaryotes typically have
7 Correct Answer A cell with a díploid number of 14
chromosomes undergoes meiosis. The number of chromosomes
in each daughter cell is
A ______ consists of diffuse unorganized polysaccharide
material that lies outside the cell wall and is easily removed
Correct Answer slime layer
A bacteria with a generation time of 30 minutes will grow from
a population of 100 cells to 100000 cells in about how many
hours. Correct Answer 5 hours
A codon is made up of Correct Answer 3 nucleotides
a dominant organelle in cells heavily involved in lipid
production is the Correct Answer smooth ER
A drug that blocks the function of a metabolic pathway is called
Correct Answer growth analog factor
,A growth medium that distinguishes among a different groups
bacteria on the basis of their biological characteristics Correct
Answer differential media
A large aggregate of amoeboid cells tat move as a unit leaving a
slime trail Correct Answer Pseudoplasmodium
a large mass of protoplasm that exhibits amoeboid movement is
Correct Answer plasmodium
A medium that contains ingredients of a precise chemical
composition is called a Correct Answer selective media
A medium that contains ingredients of unknown composition is
called Correct Answer complex media
A microscope that converts slight difference in the refractive
index and cell density into easily detected variations in light
density Correct Answer Phase contrast microscope
A nitrogenous base containing a double ring Correct Answer
Purine
A nitrogenous base containing a single ring Correct Answer
Pyrimidine
A non-protein molecule that can attach and detach from the
protein part of an enzyme and is required for normal enzyme
function Correct Answer coenzyme
,A period of two hours at 160 degrees Celsius is required for
killing bacteria Correct Answer in a hot oven
A phototrophic amoeba like organism that has flagellum for
dispersal Correct Answer Chlorachniophytes
A process that divides organisms into two or more groups
depending on their reactions to the same staining procedure
Correct Answer differential staining
A pure culture Correct Answer Only has one type of organism
growing on it
A rigid layer that is composed of sugars and amino acids found
in the cell wall of eubacteria is the Correct Answer
peptidoglycan
A rod shaped bacteria is called Correct Answer bacillus
A segment or sequence of a DNA molecule that codes fir a
polypeptide, tRNA or rRNA Correct Answer gene
A sterilizer that employs superheated steam under pressure is
called an Correct Answer Autoclave
A substance that has been pasteurized Correct Answer is not
considered sterile
A term describing molecules or regions of molecules that readily
interact with water Correct Answer hydrophilic
, A type of reaction that requires energy to be supplied from the
surrounding environment Correct Answer endergonic
a) 14 Correct Answer A cell with a diploid number of 14
chromosomes undergoes mitosis. The number of chromosomes
in each daughter cell is: a) 14 b) 7 c) 28 d)21
a) can make their own DNA and proteins
b) have circular DNA Correct Answer Mitochondria and
chloroplasts are different from other organelles in that the
mitochondria and chloroplast
a) Koch's postulates Correct Answer a set of statements
describing what is needed to establish the link between a
particular microorganism and a particular disease a) Koch's
postulates b) theory of spontaneous generation law of
segregation d) first law of thermodynamics e) Hanlon's razor
a) nucleoid Correct Answer 5: Bacteria have a region of the
cytoplasm that contains the chromosome. This region is called
the: a) nucleoid b) plasmid c) protoplast d) nucleus e) mesosome
a) polar Correct Answer A single Ragellum at one pole of a
bacterium is called: a) polar blophotrichous c) penitrichous d)
amphitrichous
a) shadow casting Correct Answer Technique using heavy
metais to stain specimens at an angle approximately 45 from the
horizontal that provides a 3 dimensional image similar to
shadowing with light: a) shadow casting b) fixation c) freeze
etching d) thin sectioning e) negative staining
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