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2006-09-08 15:10:29 · 13 answers · asked by Anonymous in Science & Mathematics Biology

13 answers

Osmosis is the diffusion of a liquid (most often assumed to be water, but it can be any liquid solvent) through a semipermeable membrane from a region of low solvent potential to a region of high solvent potential. The semipermeable membrane must be permeable to the solvent, but not to the solute, resulting in a pressure gradient across the membrane. Osmosis is a natural phenomenon. However, it can be artificially opposed by increasing the pressure in the section of high solute concentration with respect to that in the low solute concentration. The force per unit area required to prevent the passage of solvent through a selectively-permeable membrane and into a solution of greater concentration is equivalent to the turgor pressure. Osmotic pressure is a colligative property, meaning that the property depends on the concentration of the solute but not on its identity.

2006-09-08 15:16:55 · answer #1 · answered by Anonymous · 2 0

Osmosis is the diffusion of a liquid (most often assumed to be water, but it can be any liquid solvent) through a semipermeable membrane from a region of low solvent potential to a region of high solvent potential. The semipermeable membrane must be permeable to the solvent, but not to the solute, resulting in a pressure gradient across the membrane. Osmosis is a natural phenomenon. However, it can be artificially opposed by increasing the pressure in the section of high solute concentration with respect to that in the low solute concentration. The force per unit area required to prevent the passage of solvent through a selectively-permeable membrane and into a solution of greater concentration is equivalent to the turgor pressure. Osmotic pressure is a colligative property, meaning that the property depends on the concentration of the solute but not on its identity.Osmosis is an important topic in biology because it provides the primary means by which water is transported into and out of cells. Osmosis does NOT have to just be liquids; it can be gases as well.

2006-09-09 09:32:39 · answer #2 · answered by FIGHTER 2 · 0 0

osmosis is the movement of water molecules from the region of higher concentration to the region of lower concentration.while diffusion is the movement of water molecules from the region of higher concentration to the region of lower concentration through a semi permeable membrane.

2006-09-09 13:29:58 · answer #3 · answered by jose 2 · 0 0

Osmosis is the movement of liquid from the area of higher concentrqation to the are aof lesser concentration.This happens when two areas of concentration of liquid are existing side by side separated by any membrane od substance that permits the movement of liquid either way. The roots of plants absorb nutrients from the soil as in th eform of liquid . the nutrients in th soil as dissolved in the water is available in the soil around the roots of plants. the roots of plants are coverd by a thin porus skinand permits the movement of water from the soil to the plants . the inner parts of the roots of the plants would be harder and the liquid content would b emuch less than the liquid content of the soil . so the water from the area of higher concentrtion out side the plants root get into the root through the porus skin of the plant's root . So also when we soak grains and pulses in water, water gets into the grains and puses through the porus skins of the grains and pulses and make them soft for easy grinding in to pastes . But for this natural process , palants would not survive and we would not be able to soak grains and pulses and would not be able to cook them and eat them .

2006-09-08 22:46:19 · answer #4 · answered by Infinity 7 · 0 0

The movement of water, through a semi-permeable membrane, from a high concentration, to a low concentration gradient, until the concentration gradient on both sides are equal.

2006-09-09 00:09:57 · answer #5 · answered by Goofing around for answers 1 · 0 0

osmosis is the movement of water molecules from higher concentration to the lower concentration. this occurs in all cells .

2006-09-08 22:13:20 · answer #6 · answered by sandhyavandanam s 2 · 2 0

duh u freakin idiot! how old r u anyways? i learned that in 5th freakin grade! * coughs idiot *

2006-09-08 22:12:37 · answer #7 · answered by gabberswhiffendor 2 · 1 5

The movement of water from an area of high concentration to an area of low concentration across a semi-permeable membrane, sir.

2006-09-08 22:15:23 · answer #8 · answered by finaldx 7 · 1 0

Movement of water from where it is in higher concentration to where it is in lower concentration is called osmosis.High or low concentration of concentration of water may sound funny, but it should be taken by assuming that if in a given volume of aqueous solution there is less amount of solute, then water is supposed to be in higher concentration, and conversely if the solute in a given volume is in higher concentration, then water is supposed to be in lower concentration.

2006-09-08 23:58:30 · answer #9 · answered by Ishan26 7 · 0 0

the movement of water molecules from a region of their higher concentration to a region of their lower concentration(i.e from a low concentrated solution to a high concentrated solution) through a semipermeable membrane

2006-09-08 22:21:03 · answer #10 · answered by hp-here4u 2 · 1 0

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