Which molecule is not able to be absorbed across the stomach wall?
A. alcohol
B. water
C. aspirin
D. glucose
D. glucose
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Why is the random assignment of individuals to experimental and control groups important for an experiment?
A) It ensures that bias has been completely eliminated from the experiment. B) It ensures that the results of the experiment will be statistically significant. C) It ensures that the sampling error will have no effect on the results of the experiment. D) It ensures that each group will better represent the population as a whole.
The CO2 produced in respiration comes mainly from
A. glycolysis. B. the Krebs cycle. C. the electron transport chain. D. All of the above processes generate CO2.
At a replication fork, how is the lagging strand synthesized?
a. continuously b. discontinuously c. in the correct 3'-to-5' direction d. without the use of a template e. in the incorrect 3'-to-5' direction
In order to study a cell at lower temperatures, a researcher must artificially increase its membrane fluidity. What would be a reasonable strategy for increasing plasma membrane fluidity at low temperatures?
A. decrease the length of the phospholipid fatty acyl tail. B. increase the composition of phospholipids with saturated fatty acid chains C. decrease the composition of phospholipids with unsaturated fatty acid chains D. decrease the composition of cholesterol in the plasma membrane E. All of the strategies are reasonable.