Which of the following best describes the components of phospholipids?
A) glycerol, one fatty acid, two phosphate groups, and an alcohol
B) glycerol, two fatty acids, a phosphate group, and an alcohol
C) either of these, depending on the identity of the phospholipid
D) none of the above
B
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Cells that convert solar energy directly into electricity are called
A. electrosolar chips. B. photovoltaic cells. C. helioelectric units. D. photoelectric cells. E. solarelectric cells.
Which of the following occurs during Fischer esterification?
A) The -OH from the carboxylic acid and the -H from the -OH of the alcohol are eliminated as water. B) The -OH from the alcohol and the -H from the -OH of the carboxylic acid are eliminated as water. C) Water is eliminated entirely from the carboxylic acid. D) None of the above, the reaction does not produce water.
Which of the following is involved in ensuring that the small ribosomal unit is properly aligned on the mRNA
A) the anticodon B) the codon C) the Shine-Dalgarno sequence D) the Svedberg sequence
The weather system most likely to produce the strongest tornadoes is generally associated with
A. warm fronts. B. single-cell thunderstorms. C. cold fronts. D. hurricanes.