Homework.
2007-09-20 16:08:17 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Water and nutrients generally diffuse into a cell through the plasma membrane. Some nutrients may need special plasma membrane proteins to help them get in.
2007-09-20 16:12:27 · answer #1 · answered by ecolink 7 · 1⤊ 0⤋
Some people think that all nutrients simply diffuse through the cell membrane, like fog floating through a metal screen, but that is not the case. Gases like oxygen and carbon dioxide may diffuse weakly through the membrane, but easily enough to sustain the cell. Small molecules also can be drawn through the cell wall by means of osmiotic pressure, or osmosis. However, In order for better nutrition to take place, the cell membrane forms depressions on the surface which engulf nutrients, then sink into the surface of the cell forming membrane enclosed pockets called "vacuoles" this is a process known as "phagocytosis". Once inside the cell, the membrane is opened, and the enzymes in the cell can begin to attack the nutrient for cellular digestion.
2007-09-20 16:25:20 · answer #2 · answered by Anonymous · 3⤊ 0⤋
well the cells get the water in them when u drink water or other things it goes into your stomach and goes aout from well u know then with its ready to hit the toilet your intestens keep all the good waters in it and it kinda likes send it to your blood and your blood has cells and same with the nutrients
i hope i helped
thank you!
2007-09-20 16:59:27 · answer #3 · answered by Anonymous · 0⤊ 1⤋
The Cell's food Vacuole for an animal cell or: the chloroplasts for the plant cell.
2007-09-26 14:05:41 · answer #4 · answered by andrewgalazka2 1 · 1⤊ 0⤋
Through the blood stream.
2007-09-27 10:07:05 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Cellular transport mechanisms: diffusion, osmosis, facilitated diffusion, active transport, endocytosis, exocytosis.
2007-09-20 16:42:50 · answer #6 · answered by Crazygirl 3 · 0⤊ 0⤋