Microbiology Fundamentals
Find the true statement about biofilms.
They complications the treatment of some infections.
Which of the following is not useful to determine whether a clinical isolate is a bacterium, fungus, or protozoan?
a. its size under under a light microscope b. whether it has a cell wall c. whether it can form protective structures under stress d.all of the above are reliable ALL
Mitochondria likely originated from
bacteria
Which of these organisms has the best potential to survive in extreme environments?
fungi
Archaea
lack peptidoglycan in their cell walls.
Nanotubes are extensions of the ______ that can function in ___________.
membrane, nutrient transfer
The Golgi apparatus
modifies proteins
The lac operon is usually in the _____ posistion and is activated by a/an molecule.
off;inducer
Which of the following is present in both gram-positive and gram-negative cell walls?
peptidoglycan
Which of these groups causes the most causualties on an annual basis globally?
protozoa
Which of the following is not a mechanism of horizontal gene transfer?
spontaneous mutations
Fungi produce which structures for reproduction and multiplication? a. endospores b. cysts c. spores d. eggs
spores
Bacterial endospores usually function in
survival.
The creation of biological molecules and cells entirely from chemicals is called
synthetic biology
DNA is semiconservative because the _____ strand will become half of the ____ molecule?
template,finished
Yeasts are __ fungi, and molds are __ fungi
unicellular, filamentous
Which of the following is a characteristic of RNA?
RNA molecules are necessary for translation and gene regulation
How many cycles of PCR would it take to create 16 copies of a DNA molecule?
4
Which of the following would be used to identify an unknown bacterial culture that came from a patient in the intensive care unit?
Bergey's Manual of Determinative Bacteriology
single nucleotide polymorphisms are found in
DNA
Which structure plays a direct role in the exchange of genetic material between baceterial cells?
Pilus