STRAIGHTERLINE, FINAL EXAM
STRAIGHTERLINE MICROBIOLOGY
10-400 nm. - answer-virion size ranges from
2 - answer-what is the usual net production of ATP?
80s - answer-The size of a eukaryotic ribosome is ______
90C - answer-DNA strands can begin to separate at the temperature of ______.
95X - answer-If a microbiologist is studying a specimen at a total magnification of
950X, what is the magnifying power of the objective lens if the ocular lens is
10X?
A diagnosis of tuberculosis involves a/an... - answer-chest X-ray, acid-fast stain of
sputum, sputum culture, tuberculin skin test
A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from
the Last Universal Common Ancestor would show Archaea - answer-branching off
the Domain Eukarya.
a disease or morbid process - answer-The suffix -osis means ______.
A group of protozoa that are not motile are the... - answer-Plasmodium sp.
A mutation that changes a normal codon to a stop codon is called a ___ mutation
- answer-nonsense
A negative RNA virus must first - answer-synthesize a positive RNA copy of its
genome
A permanent, inheritable change in the genetic information is called... - answer-a
mutation
A protozoan having flagellum would be classified in the genus - answer-
Trypanosoma
A pure culture contains... - answer-only one identified species of microorganism
A reducing medium contains - answer-substances that remove oxygen
A scientist studying the sequence of nucleotides in the rRNA of bacterial species
is working on... - answer-determining evolutionary relatedness
a solid medium - answer-Which of the following is produced by adding 1% to 5%
agar to nutrient broth that is then boiled and cooled?
A treatment for bacterial infections from the early 20th century has made a
comeback; the use of bacterial viruses to eliminate bacterial infections. Which
,explanation most accurately describes the reason for return of this treatment? -
answer-
Acute infection... - answer-rapids onset of severe, short-lived symptoms
Add enzymes to catalyze all required steps in the process - answer-Which of the
following is not a step in the mass production of an organic substrate in a
fermentor?
adenine-thymine - answer-Replication of DNA begins at a/an _______ rich area.
Adulthood and mating of helminths occur in which host? - answer-Definitive host
aerobic cellular respiration - answer-Exergonic reactions occur during
All of the following are polysaccharides except... - answer-sterols in cell
membranes.
All of the following pertain to glycolysis except - answer-it degrades glucose to
co2 and h20
All of the following pertain to nitrogenous bases except... - answer-guanine pairs
with uracil
All of the following pertain to virus envelopes except - answer-located between
the capsid and nucleic acid
allergic rhinitis - answer-A seasonal reaction to inhaled allergens is ______
always harmful to their host - answer-Organisms called parasites are ______.
Among the types of microorganisms, the ___. are noncellullar - answer-viruses
amphitrichous - answer-The term that refers to flagella at both poles of the cell is
______.
An effective test to determine whether an individual is allergic to a specific
substance is to... - answer-test for levels of IgE specific for the allergen
An example of an amphipathic molecule found in living cells is ___ - answer-
Phospholipid
An organism that can exist in both oxygen and oxygen free environments is a... -
answer-facultative anaerobe
An organism that can use gaseous oxygen in metabolism and has the enzymes
to process toxic oxygen products is an... - answer-aerobe
An organism with a temperature growth range of 45 C to 60 C would be called... -
answer-thermophile
anabolism - answer-Synthesis of complex molecules from simpler ones with the
input of energy is called ______.
, anaerobic - answer-Methane is a significant part of the carbon cycle in ______
environments dominated by methanogens.
animals - answer-Starch is the primary storage food for all of the following
except ______.
Antigen presenting cells... - answer-include dendritic cells. include macrophages.
engulf and modify antigen to be more immunogenic. hold and present processed
antigen on their cell membrane surface.
antisepsis - answer-The alcohol wipe used on a patient's skin before an injection
is an example of ______.
Antiviral drugs are often difficult to develop, largely because - answer-viruses are
obligate intracellular parasites so the drugs must enter the host cell and often
cause toxic side effects in order to destroy the virus
Anything that occupies space and mass is called... - answer-matter
archaea - answer-You are working with a newly described microorganism that
has flagella that are solid, 10 nm in diameter, and composed of more than one
type of flagellin subunit. Based on the type of flagella, which type of organism is
this?
as a protective mechanism against adverse changes in the environment and in
transfer from one host to the next. - answer-A cyst formed by a protist functions
Aspergillus oryzae - answer-The fungus used in the production of saki and soy
sauce is _________.
ATP differs from the nucleotides found in the DNA in the... - answer-sugar protein
of the molecule
attracted to the acidic surface of bacterial cells - answer-Basic dyes are
Bacteria that require special growth factors and complex nutrients are termed... -
answer-fastidious
Bacterial cells are typically between 1-10 μm and are blocked by the filter,
whereas most viruses are between 20 and 200 nm and therefore pass through. -
answer-Sterilizing filters have a pore size of 0.22 μm. Which of the following
statements is true?
Bacteriophages sprayed on cold cuts are effective against... - answer-Listeria
Bata-lactams are selectively toxic because... - answer-they inhibit the formation
of peptidoglycan, which humans do not make
Before the advent of biotechnology, diabetics would use insulin harvested from
cows. Now they receive human insulin produced through... - answer-recombinant
DNA technology