What is the defining characteristic of bacteria in the genus Magnetospirillum?
a. They contain intracellular magnetic particles.
b. They contain magnesium.
c. They are a light purple (magenta) color.
d. They are spiral-shaped.
Answer: A
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Which of the following steps in the Citric Acid Cycle produce a CO2?
1.malate to oxaloacetate 2.succinate to fumarate 3.isocitrate to alpha-ketoglutarate 4.succinyl CoA to succinate 5.citrate to isocitrate
A one-way relationship in which one species
benefits at the expense of another is a. commensalism. b. competitive exclusion. c. parasitism. d. obligate mutualism. e. a neutral relationship
Minimal media is
A) growth media used in the smallest volume in which cells can grow. B) growth media designed to minimize the growth of contaminants. C) growth media that contains the minimal nutritional requirements for normal cells. D) a way to visualize new mutations in a minimum amount of time. E) used to reveal only mutant cell colonies against a dark background.
Arrange the following molecules in order with respect to their relative levels of oxidation (assign 5 to the most oxidized and 1 to the most reduced)
_______ CH2O (formaldehyde) _______ CH4 (methane) _______ CHOOH (formic acid) _______ CH3OH (methanol) _______ CO2 (carbon dioxide) Fill in the blank(s) with correct word