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Only water is transported through the process of osmosis.
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∙ 7y ago
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What are the materials required for osmosis?
Osmosis occurs when there are two solutions of different concentration strength separated by a semipermeable membrane. The membrane must allow water to cross, but not the solutes. Water will then move from the solution of lower concentration strength across the membrane to the solution of higher concentration strength. This movement of water is called osmosis.
How does H20 cross the membrane?
Aquaporin Water Channels. A special protein channel with a polar side lets water in but not other substance. The water must aline itself and slide through the narrow channel. Also known as osmosis. For more info look up "Aquaporin Water Channels" Nobel Prize in Chemistry Winners.
What is the difference between simple diffusion and facilitated diffusion?
It doesn't. (answer by RRU member Cyrem)
Can you explain osmosis?
Osmosis the the diffusion of molecules across a semi-permeable membrane. For diffusion, think of a cube of sugar in a glass of water. eventually the sugar molecules will be evenly distributed throughout the glass of water. If this were osmosis the cube of sugar would be on one side of a membrane (all of which is submerged underwater), and if the holes in the membrane are big enough, then the sugar will cross the membrane from the sugar side to the side with no sugar. Osmosis is biologically relevant because for a cell to function properly it needs to keep certain molecules inside the cell or outside, depending on what it wants to do. It has three solutions hypertonic, hypotonic, and isotonic. Isotonic, the solutions being compared have equal concentration of solutes. The cells were diluted in serum: Note the beautiful biconcave shape of the cells as they circulate in blood. Hypertonic, the solution with the higher concentration of solutes. The cells in serum were diluted in water: At 200 milliosmols(mOs), the cells are visisbly swollen and have lost their biconcave shape, and at 100 mOs, most have swollen so much that they have ruptured, leaving what are called red blood cells ghosts. In a hypot Hypotonic, the solution with the lower concentration of solutes.A special type of diffusion through a membrane____________________________________________________________Passage of a solvent (such as water) from a lower-concentration solution to a higher-concentration solution, through a semi-permeable membrane (that allows the solvent to pass but not what is dissolved in it) separating the two solutions. The flow of solvent stops when both solutions become equal in concentration. In nature, osmosis is an essential process by means of which nutrients are delivered to the cells. See link below.
What are the hallways of the cell?
ENDOPLASMIC RETICULUM (ER) Endoplasmic Reticulum The endoplasmic reticulum is a network of membranes found within almost all eukaryotic cells. The membranes are connected to the membrane of the cell’s nucleus and are important for many cellular processes such as protein production and the metabolism of lipids and carbohydrates. The endoplasmic reticulum includes both the smooth ER and the rough ER. The smooth ER is a smooth membrane and has no ribosomes, whereas the rough ER has ribosomes that are used to produce proteins.
Osmosis can only occur if water travels through the what?
Osmosis can only occur if water travels through the semi-permeable membrane. This will cause water to cross the lipid bilayer.
What process requires membrane proteins but not energy?
Osmosis is the membrane activity that does not require the expenditure of energy by the cell. It does not require any input of energy.
What must a substance pass through to enter or leave a cell?
If substances did not pass through cell membranes, then all single-celled and multicellular organisms would die.
What is the process where in the diffusion of water cross a cell membrane?
Osmosis
What process do water molecules cross the cell membrane?
Process in which water molecules moves across a membrane?
How does nutrients cross plasma membrane?
Things like oxygen, CO2 and lipids cross the membrane with simple diffusion. Water can cross the membrane with osmosis when the water moves through a channel protein in the plasma membrane. Glucose, potassium, sodium etc. moves through a carrier protein in the membrane with the process of active movement. In the process of active movement energy is needed and it is given by the glucose or ATP from the cell.
