Osmosis can be defined as
A) the diffusion of water.
B) the diffusion of nonpolar molecules.
C) active transport.
D) the diffusion of a solute.
Answer: A
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Glycolysis and the Krebs cycle do not capture all of the energy in a glucose molecule because
A. ATP easily vaporizes. B. energy cannot be created or destroyed. C. some glucose is not broken down. D. some energy is always lost as heat during chemical reactions. E. some energy remains in the atoms.
Consider the ADH reaction below, and answer the following question. ADH stands for alcohol dehydrogenase
In this reaction, acetaldehyde represents the ____.
a. enzyme b. reactant
c. product d. activation energy e. trigger
Which of the following adds RNA nucleotides, one at a time, during transcription?
a. RNA polymerase b. DNA polymerase c. RNA nuclease d. transfer RNA e. ribosomal RNA
Genetic drift is the result of ________
A) natural selection B) chance C) a large gene pool D) environmental variation