Which of the following is NOT a characteristic
of prions or prion diseases?
a. the protein that becomes a prion is common
throughout the body
b. they are misfolded proteins
c. they form fibers that accumulate in the
brain
d. they result in tiny holes in the brain
e. prion diseases are non-fatal
E
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In Gram-stained preparations, M. lacunata will appear as:
a. either gram-negative coccobacilli or short, broad rods that tend to resist decoloriza-tion and may appear gram-variable. b. gram-negative cocci in pairs or short chains. c. coccobacilli or medium-sized rods. d. coccobacilli that may appear in chains.
Lactate production in muscle cells is
a. temporary. b. due to oxygen deficiency. c. an NAD+ regenerator. d. temporary and due to oxygen deficiency. e. temporary, due to oxygen deficiency, and an NAD+ regenerator.
Fermentation occurs if ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following biological molecules are composed of amino acid subunits?
A) Carbohydrates B) Nucleic acids C) Lipids D) Proteins