At the beginning of a 3-hour lab section in a general biology class, all the stu

Question

At the beginning of a 3-hour lab section in a general biology class, all the students went to the restroom to empty their bladders. A few minutes later,

1/3 of the students drank 350 ml of water (Group A),

1/3 of the students drank 350 ml of a hypertonic NaCl solution (Group B),

and, 1/3 of the students drank 350 ml of beer (Group C).

All else being equal, which one of the following results would you most likely expect?

During the lab period, students in Group A would produce the greatest amount of urine.

During the lab period, students in Group B would produce the greatest amount of urine.

During the lab period, students in Group C would produce the greatest amount of urine.

During the lab period, urine production in the 3 groups of students would be about the same.

During the lab period, students in Group A would produce the greatest amount of urine.

During the lab period, students in Group B would produce the greatest amount of urine.

During the lab period, students in Group C would produce the greatest amount of urine.

During the lab period, urine production in the 3 groups of students would be about the same.

Explanation / Answer

Answer - B. During the lab period, students in Group B would produce the greatest amount of urine.

Nacl leads to makes dehydration. The kidneys increase urine production until sodium concentration returns to a normal level.

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