Janelle always feels more "tipsy" than her same-size boyfriend after they drink the same amount of alcohol. How would you explain this observation

In women, the concentration of the enzyme alcohol dehydrogenase is lesser as compared to those of males. The enzyme alcohol dehydrogenase is involved in the oxidation of a variety of alcohol and hence degrades the alcohol. As women tend to have lesser amounts of this enzyme, hence more alcohol is reabsorbed in the blood stream of females as compared to that of males. This is the reason a female will feel more tipsy than a male if they consume the same amount of alcohol.