Cellular Transport Worksheet KEY OSMOSIS Copy the pictures below‚ and write the correct type of solution underneath (isotonic‚ hypertonic‚ or hypotonic) Hypotonic Hypertonic Isotonic Hypertonic means there is a GREATER concentration of solute molecules OUTSIDE the cell than inside. Hypo tonic means there is a LOWER concentration of solute molecules OUTSIDE the cell than inside. Isotonic means there
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Study guide questions: Movements through membrances 1. Prepare a graph that illustrate the diffusion distance of potassium in 10 minutes 2. Explain your graph : 3. Define simple diffusion: 4. Define osmosis: Osmosis can be defined as the movement of solvent molecules across a semipermeable or selectively permeable membrane ‚from a region of lower concentration of the solute to that of a higher concentration till equilibrium is attained. 5. What is the change in the level of molasses
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high salt concentration in the solution. I believe it has a great deal to do with osmosis. Osmosis is basically the movement of water from in a cell to outside it or from outside the cell to inside it. The 0% salt concentration and the 5% salt concentration showed a mass increase because there was a higher water concentration outside of the potato cells than inside them. To solve this the potato cells experience osmosis to balance the concentration of water in the cell and outside it. Since there is
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--------- 7 * CONCLUSION ----------------------------------------------------------- 8 * REFERENCE ----------------------------------------------------------- 9 TITLE Osmotic pressure within red blood cell. INTRODUCTION Osmosis is a passive movement of water molecules going across the partially permeable membrane. It is a very spontaneous process due to the downhill energy flow known as “water potential” by which‚ water molecules move from a region of higher water potential
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concentrated areas until equilibrium or homeostasis is reached. 4. Compare and contrast diffusion‚ osmosis‚ and facilitated diffusion.
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to the leaves of a plant. At first water enters the root by osmosis because the soil water has a lower solute concentration of minerals than the epidermal cell cytoplasm (there is a water potential gradient). Water movement across the cortex cell is by two pathways both involving a water potential gradient. The cortex cell cytoplasm has a solute concentration gradient. This moves water symplastically from cell to cell by osmosis. The Apoplastic pathway moves water by capillary action of mass
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water trying to enter the seed‚ therefore creating a blockage and will become inactive or germinate slowly (cocoponics‚ 2011). Unlike diffusion‚ the mixing of solute particles with water‚ Osmosis is water mixing with solute particles to pass through the cell wall and provide nutrients to the cell. Since osmosis is a type of diffusion that only involves water moving through the permeable membrane‚ salinity affects seed germination through osmotic effects (Bliss et al.‚ 1986). When NaCl is present
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mM/min 5) Which of the following is NOT a passive process? 5) _______ A) osmosis B) facilitated diffusion C) vesicular transport D) filtration 6) In this activity‚ the solutes were transported through the dialysis membrane by _______. 6) _______ A) simple diffusion B) osmosis C) active transport D) facilitated diffusion 7) The sodium-potassium pump can
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Osmosis is a specialised form of diffusion. Water moves from an area of LOW concentration of Solute to an area of HIGH concentration of solute through a semi-or fully permeable membrane by the process. Water moves constantly through the cell ’s membrane its estimated that about 250 times the volume of a single cell moves through 1 per second This continues until the solute concentration reaches equilibrium It is convenient to express the available energy per unit volume in terms of "osmotic
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PHYSIO EX 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. The temperature of the solutions and the difference in concentration of the ion or molecule between the sides of the membrane 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? Since the chemical formula for urea is (NH2)2CO and its molecular weight is about 60. It will not diffuse through the
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