MICRO Bio 235 Final Exam ALL QUESTIONS AND CORRECT ANSWERS LATEST UPDATE THIS YEAR

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MICRO Bio 235 Final Exam ALL QUESTIONS
AND CORRECT ANSWERS LATEST UPDATE THIS
YEAR
QUESTION: Which type of media would be the best choice when sending a patient sample to a
laboratory to be tested for a bacterial infection? - ANSWER-transport media


QUESTION: Name six types of microorganisms that we will be studying in this class - ANSWER-1)
Bacteria
2) Archea
3) Protozoa
4) Fungi
5) Helmiths
6) Viruses


QUESTION: When microbes are in a close nutritional relationship, and one benefits but the
other is not harmed, it is called _____. - ANSWER-commensalism


QUESTION: The time interval going from a single bacterial parent cell to two new daughter cells
is called the - ANSWER-generation time


QUESTION: The movement of substances from higher to lower concentration across a
semipermeable membrane that must have a specific protein carrier but no energy expenditure
is called - ANSWER-facilitated diffusion


QUESTION: In eukaryotic cells, ribosomes are scattered freely in the ________ and are attached
to the surface of the _________. - ANSWER-cytoplasm; endoplasmic reticulum




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QUESTION: Filamentous fungi are called _____. - ANSWER-molds


QUESTION: Bacteria, archaea, and eukaryotes are believed to have evolved from a different
kind of cell, known as the _________. - ANSWER-last common ancestor


QUESTION: Viruses have all the following except ________. - ANSWER-own metabolim


QUESTION: Which of the following will not support viral cultivation? - ANSWER-Live lab animals
**All of the choices will support viral cultivation.**
cell cultures
Embryonated bird eggs
tissue cultures


QUESTION: Viruses are usually _________ in size, and their structure is best viewed through the
use of ________ microscopy. - ANSWER-nanometers; electron


QUESTION: The phase of the bacterial growth curve in which the rate of cell division equals the
rate of cell death is the _____. - ANSWER-stationary phase


QUESTION: An organism that cannot tolerate an oxygen environment is a(n) _____. - ANSWER-
obligate anaerobe


Q; Order the following choices (Phylum; species, genus , domain) to reflect the organization of
taxa, from the most general to the most specific - ANSWER-1)Domain
2) Phylum
3) genus
4)Species




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QUESTION: The term that refers to the presence of flagella over the cell surface is - ANSWER-
Peritrichous


QUESTION: 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? - ANSWER-95x


QUESTION: The term used to describe the broad field of science that involves human
manipulation of microbes for use in industrial processes is - ANSWER-Biotechnology




QUESTION: When it is important to count the number of cells, determine cell size, and
differentiate between dead and live cells, a _______ is used. - ANSWER-flow cytometer


QUESTION: A cell exposed to a hypertonic environment will _____ by osmosis. - ANSWER-lose
water


QUESTION: In the viable plate count method, a measured sample of a culture is evenly spread
across an agar surface and incubated. Each _______ represents one _______ from the sample. -
ANSWER-colony; cell


QUESTION: The Golgi apparatus ________. - ANSWER-modifies proteins


QUESTION: Fungi produce which structures for reproduction and multiplication? - ANSWER-
Spores


QUESTION: The three structures utilized for locomotion by protozoa are flagella, cilia, and
________. - ANSWER-pseudopods


QUESTION: Which of the following describes the relationship between the fungal hyphae and
mycelia? - ANSWER-Hyphae are filamentous cells that grow together in an intertwined mass
called a mycelium.


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