If a person were to place a marine fish into a fresh water lake, water would diffuse

1. up its concentration gradient and enter the fish.
2. down its concentration gradient and enter the fish.
3. down its concentration gradient and exit the fish.
4. up its concentration gradient and exit the fish.
5. none of the choices are correct.

2

Explanation:

Osmosis is the process by which solvent diffuses through a selective permeable membrane from a low solute concentration zone to a higher one.

In this example, the fish skin represents that selective membrane. Also, we are told that is a marine fish. Sea water have higher concentration of salt and fishes are adapted to it, their cells have also high concentrations of salt compared to freshwater fishes.

If a person placed this marine fish into a fresh water lake, water (solvent) would diffuse down its concentration gradient (from high water concentration in the lake to lower, inside the fish) and therefore enter the fish.

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)