- A medium containing no living organisms is called a
(a) sterile culture medium
(b) an obligate medium
(c) a chemically defined medium
(d) a moisture-filled medium - A chemically defined medium must contain growth factors.
(a) True
(b) False - What is agar?
(a) A nutrient
(b) A vitamin
(c) A solidifying agent
(d) A broth - What culture provides growth of a certain microorganism but not others?
(a) Inherited culture
(b) Inhibited culture
(c) An infectious culture
(d) An enrichment culture - How can preserved bacteria cultures be revived?
(a) Oxygenation
(b) Hydration
(c) Hydration and liquid nutrient medium
(d) Oxygenation and liquid nutrient medium - A microorganism is a small organism that intakes and breaks down food
for energy and nutrients, excretes unused food as waste, and is capable of
reproduction.
(a) True
(b) False
11.Apathogenic microorganism is a microorganism that causes disease in a
host.
(a) True
(b) False(^250) Final Exam
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