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Two Researchers Wish to Examine the Effect of Caffeine on Alertness

question 45

Essay

Two researchers wish to examine the effect of caffeine on alertness. One researcher has the participants drink a cup of coffee with 100 mg of caffeine, while the other researcher has the participants take a capsule with 100 mg of caffeine. In all other respects, these two studies are identical. Which method do you think will answer the question best? Why? Are there any complicating factors that could compromise the results of one of the studies?


Definitions:

Glucose

A basic form of sugar that serves as a crucial source of energy for living beings and a fundamental element of numerous carbohydrates.

Cyclic Hemiacetal

A cyclic organic compound formed from the reaction of an alcohol with an aldehyde or ketone, characterized by a carbon atom bonded to an oxygen (in hydroxy group), another oxygen (in ether group), a hydrogen, and an alkyl or aryl group.

Erythro

A descriptor in stereochemistry, referring to molecules in which two substituents are on the same side in a Fischer projection.

Fischer Projection

A method for representing the three-dimensional configuration of molecules on a two-dimensional plane, used especially for carbohydrates.

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