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Does osmosis occur if a cell is placed in an isotonic solution?
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- Consider three groups of solutes: (i) steroid hormones, fatty acids,and other lipids; (ii) inorganic ions; and (iii) polar organic solutessuch as glucose and amino acids. What is the principal mechanismby which each group crosses cell membranes passively? Why domembers of the first group cross in a fundamentally different wayfrom solutes belonging to the other two groups?ell Transport What is shown in the picture below? Plasma membrane C Extracellular fluid -Sodium Na Cytoplasm 11,819 10000 www 0 ATP Phosphate ADP #13 Potassium K* mo 00 20 N Na K" ConcentrationIn the image provided what membrane property is being demonstrated? membrane selective permeability of membrane for water molecules by diffusion O selective permeability of membrane for water molecules by osmosis fluid mosaic model of membrane fluidity O the effect of cholesterol in buffering membranes
- Match the following terms with the appropriate type of movement across a cell m diffusion active transport facilitated diffusion osmosis endocytosis A membrane-bound vesicle fuses with the cell membrane and releases its contents inside of the cell membrane lons move through a semi-permeable membrane down their concentration gradien t (high to low) without the use of energy from the cell. Water diffuses freely across a semi-permeable membrane without the use of energy from the cell. A molecule moves against its concentration gradient (low to high) with energy provided by ATP molecules in the cell A membrane-bound vesicle fuses with the cell membrane and releases its contents inside of the cell membrane A molecule moves down its concentration gradient (high to low) assisted by a carrier protein in the cell membrane without the use ofTONICITY DRAG THE WORDS INTO THE BLANK SPACES BELOW TO ACCURATELY COMPLETE THE PARAGRAPH Hypotonic Osmosis water Swell Cell wall animal cell plant cell Facilitated Stay the same Hypertonic Diffusion Isotonic Shrink A Let's put both cells into Solution B. Because Solution B is hypertonic to the cytoplasms of the cells, we would expect water to the cells through the process of This would result in the cytoplasm of both cells shrinking. Now we'll put both the plant and the animal cell into Solution C, which, because it contains no solutes at all, is to the cytoplasm of both cells. will enter both cells through osmosis. The animal cell is likely to unfortunately. The plant cell, however, is protected from this because of the presence of its which is lacking in the animal cell.. DRAW IT An artificial “cell” consisting of an aqueous solutionenclosed in a selectively permeable membrane is immersed ina beaker containing a different solution, the “environment,”as shown in the accompanying diagram. The membrane ispermeable to water and to the simple sugars glucose and fructosebut impermeable to the disaccharide sucrose.(a) Draw solid arrows to indicate the net movement of solutesinto and/or out of the cell.(b) Is the solution outside the cell isotonic, hypotonic, orhypertonic?(c) Draw a dashed arrow to show the net osmosis, if any. (d) Will the artificial cell becomemore flaccid,more turgid,or stay the same?(e) Eventually, willthe two solutionshave the same ordifferent soluteconcentrations?
- In osmosis, water flows from hypertonic/hypotonic/isotonic solutions to hypertonic/hypotonic/isotonic solutions, until both solutions are hypertonic/hypotonic/isotonic.How is osmosis different from simple diffusion? osmosis involves the movement of water, simple diffusion involves the movement of solutes simple diffusion utilizes energy in the form of a solute concentration gradient, osmosis utilizes energy in the form of ATP Osimple diffusion moves solutes with their concentration gradient, osmosis moves solutes against their concentration gradient osmosis is a form of active transport, simple diffusion is a form of passive transport Det betalen տներն ոգուWater travels from a region of hypotonic fluid to a region of hypertonic fluid across a selectively permeable cell membrane during the following O a Diffusion Ob Osmosis Oc Endocytosis Od A and B Oe. All of the Above
- Which of the following factors would tend to increase membrane fluidity? A greater proportion of unsaturated phospholipids A relatively high protein content in the membrane A greater proportion of saturated phospholipids A lower temperatureSolutes tend to diffuse from a region where they are _______ concentrated to an adjacent region where they are _______ concentrated. a. more, less b. less, more c. movement is independent of concentrationDiffusion and osmosis classification Classify the following characteristics based on whether they are describing diffusion, osmosis, or both. Diffusion Results in an Can occur with equal distribution of solute molecules or without a membrane Always involves the movement of water Requires a semi-permeable membrane Osmosis Involves the movement of gases, ions, and small water soluble molecules Passive form of movement that requires no energy Moves from areas of high concentration to low Both Diffusion and Osmosis Responsible for gas exchange in the lungs concentration A 3 of 15 Next > Cation to open the document "Epicinstaller-13.0.0-fortnite-a8e4f12cada646caa706d8be407be69f (3).msi". tv 22