A lab made cell consisting of an aqueous solution enclosed in a semipermeable membrane is immersed in a beaker containing a different aqueous solution. The cell membrane is permeable ONLY to water, glucose and fructose. What net movement across the cell membrane is expected if the solutions inside the cell and surrounding the cell have the concentrations described in the picture? Environment: "Cell"- 0.01 M sucrose 0.03 M sucrose 0.01 M glucose 0.01 M fructose 0.02 M glucose fructose will move from the environment into the cell O glucose will move from inside the cell out O all of these are correct fructose will move from inside the cell out O two of these are correct O three of these are correct O sucrose will move from inside the cell out
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- An artificial cell consisting of an aqueous solution enclosed in a selectively permeable membrane (but with no cell wall) is immersed in a beaker containing an aqueous solution. The outside environment concentration consists of 0.01 M glucose and the inside of the cell has a concentration of 5.0 M glucose. The plasma membrane is permeable to water and monosaccharides, but impermeable to the disaccharides. Complete the following for the image below: Is the glucose going down or against its concentration gradient? Is the movement of the solute in the cell going out of the cell? Down...Yes Down...No Against...Yes Against...NoAn artificial cell consisting of an aqueous solution enclosed in a selectively permeable membrane (but with no cell wall) is immersed in a beaker containing an aqueous solution. The outside environment concentration consists of 0.01 M glucose and the inside of the cell has a concentration of 5.0 M glucose. The plasma membrane is permeable to water and monosaccharides, but impermeable to the disaccharides. Complete the following for the image below: Is the solution inside the cell isotonic, hypotonic, or hypertonic? Is the glucose going down or against its concentration gradient? Draw solid arrow to indicate the movement of the solute into or out of the cell. Draw a dashed arrow to show the movement of water. Will the artificial cell become lyse, shrivel, or stay the same?For the following modes of transport for membranes, tell whether the flow is with or against chemical potenial. Meaning +deltaG or -deltag A. Passive Diffusion B.Faciliated Diffusion C.Active Transport
- a solution is hypotonic relative to a cell, how will water move?which of the following do molecules use as transportation when they are too large to move through a cell membrane?In the Nernst equation [V = 62 log10 (Co/ Ci)], the term Ci represents: the extracellular concentration of potassium the extracellular concentration of sodium the membrane potential (in millivolts) the intracellular concentration of calcium the intracellular concentration of potassium Which of the following ions must be kept to very low concentrations within the cell cytoplasm in order to allow for enough substrate molecules to synthesize nucleotides and nucleic acids? HCO3- (bicarbonate) Ca2+ (calcium) PO43- (phosphate) Na+ (sodium) K+ (potassium)
- An artificial cell consisting of an aqueous solution enclosed in a selectively permeable membrane (but with no cell wall) is immersed in a beaker containing an aqueous solution. The outside environment concentration consists of 0.01 M glucose and the inside of the cell has a concentration of 5.0 M glucose. The plasma membrane is permeable to water and monosaccharides, but impermeable to the disaccharides. Complete the following for the image below: Will the artificial cell become lyse, shrivel, or stay the same? lyse shrivel stay the sameBelow are listed molecules with different chemical characteristics. Knowing that all molecules will eventually diffuse across a phospholipid bilayer, select the list that most accurately predicts the relative rates of diffusion of these molecules (fastest to slowest) across a biological membrane. alanine, propanol, sodium, estrogen sodium, propanol, alanine, estrogen estrogen, propanol, sodium, alanine estrogen, propanol, alanine, sodiumGiven the following cell type and solutions, draw the cell, showing the net direction of osmosis (water flow) and say what state the cell will be in. Choose from the following terms to describe the state of the cell: Turgid, flaccid, plasmolyzed, crenulated (shriveled), lysed (burst), normal. An animal cell with an internal osmolarity of 0.32 M (total concentration of all the solutes in solution) that is placed in a solution of 0.32 M NaCl.
- Eukaryotic membrane fluidity can be increased by which of the following mechanisms? increasing the number of carbons in the fatty acids of membrane lipids increasing the number of fatty acids attached to glycerol in membrane lipids increasing the number of straight-chain fatty acids of membrane lipids increasing the degree of unsaturation in the fatty acids of membrane lipids increasing the number of membraned organelles in the eukaryotic cellWhat type of energy helps drive the passive processes of diffusion, osmosis, and facilitated diffusion? (Pick ALL correct statements involved with this.) In other words what are all the TRUE statements regarding these processes? Select one or more: a. random motion which increases when molecules have low molecular weight b. random motion which decreases when temperature decreases c. random motion which increases when temperature increases d. random motion which increases when molecules concentration increases e. ATP energy f. random motion which increases when molecules have large molecular weight g. random motion which increases when molecules concentration decreasesDraw and label a cell lipid bilayer and diagram how the following transport processes take place: passive diffusion of oxygen into the cell, facilitated diffusion of potassium into the cell, active transport of sucrose into the cell. Using different symbols (circles for oxygen, squares for sucrose, and triangles for potassium ions), show the relative concentrations (gradients) of these substances on the inside and outside of the cell. For example, to show that oxygen enters the cell by going “down” its gradient, you would draw more circles on the outside of the cell than inside the cell. Be sure to show and label membrane proteins when appropriate, and show the electric membrane potential using “+”s (pluses) on one side and “-”s (minuses) on the other side of the membrane. Also show the proton pump which uses ATP as a source of energy.