Buffering systems work to maintain pH within normal limits by:
A) adding hydrogen ions when conditions becomes too acidic.
B) adding hydrogen ions when conditions become too acidic and removing hydrogen ions when conditions become too basic.
C) removing hydrogen ions when conditions become too acidic and adding hydrogen ions when conditions become too basic.
D) adding hydroxide ions when conditions become too basic.
Answer: C
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A. the high potential energy of the carboxylic acid group. B. the large number of carbon-carbon and carbon-hydrogen bonds they contain. C. their hydrophobic nature conferred by their chemical formula. D. their three-dimensional bonding structure. E. None of the answer options is correct.
Crossing over is limited to a single occurrence for a chromosome
Indicate whether the statement is true or false.
What is a global impact of glacier recession?
a. lower crop yields b. increased precipitation c. rising sea levels d. fewer tropical storms
What is beta-oxidation?
What will be an ideal response?