9 Diagrams A and B represent two slide
preparations of Elodea leaves (an aquatic plant).
A
Elodea leaf mounted
in tap water
B
Elodea leaf mounted
in 6% salt solution
The tap water used contained 1 percent salt and
99 percent water, while the salt solution contained
6 percent salt and 94 percent water. Elodea cells
normally contain 1 percent salt. Ten minutes
after the slides were prepared, a microscopic
examination of cells in leaves A and B would most
likely show evidence that
(1) water had moved out of the cells of leaf B
(2) salt had moved out of the cells of leaf B
(3) water had moved into the cells of leaf A
(4) salt had moved into the cells of leaf A