If you boil a cup of water with a tablespoon of dried shitake mushrooms and take a sip after it cools down, your taste receptors will identify the following flavor: ________
A) bitter B) salty C) umami D) sweet
Answer: C
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A section of lung from a patient with sputum cultures positive for acid-fast organisms is negative when stained with the Ziehl-Neelsen stain. To confirm that no organisms are present in the lung tissue, it would be best to stain new sections with:
a) auramine-rhodamine b) Giemsa c) Gram d) Dieterle
Why are endospores used to measure the effectiveness of autoclave sterilization?
A) Endospores are easy to store in the lab until needed. B) Endospores are very simple structures and easy to detect. C) Endospores are very hard to kill. D) Endospores are composed of all the molecules found in living cells. E) Endospores of different bacteria are destroyed at different temperatures and can be used to calibrate autoclave temperatures.
Only 180 living species of velvet worms, characterized by jaws, an open circulatory system, and relatively large
brains, comprise the ____ Ecdysozoan phylum.
a. Arthropoda b. Onychophora c. Nemertea d. Annelida e. Nematoda
The Embden-Meyerhof, Entner-Doudoroff and pentose phosphate pathways all bring about the reduction of coenzymes (either NAD+ or NADP+). The reduced coenzymes ________.
A. are converted into ATP for energy B. serve as precursor molecules for anabolic reactions C. can no longer be oxidized D. provide reducing power to fuel subsequent reactions