Osmosis in Potato Cells Interpretation My results show what I predicted would happen. My prediction was that as the concentration of sucrose increased the amount of water moving in or out of the potato would change. A low concentration of sucrose solution would make the potato increase in length and mass (become turgid). A high concentration of sucrose solution would make the potato shrink (plasmolysed) We can see this occurred‚ as at 0.1mol of sucrose solution the potato’s size increased by an
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potato is very high because this experiment exactly showed what happened when there is Osmosis present and the following information will prove it. Our results greatly showed that there has been osmosis present. Osmosis is the diffusion of water through a partially permeable membrane from a region of lower solute concentration to a region of higher solute concentration. And the results we got shows that osmosis occurred in this experiment. In 0.0 mols of sucrose the mass of potato has increased so
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a few types of diffusion. Three (3) of those are: Facilitated Diffusion- refers to diffusion of substances across a cell membrane with the help of transport protein. Dialysis- refers to the diffusion of solutes across a semipermeable membrane. Osmosis- refers to the diffusion of the solvent across semipermeable membrane. The concept of diffusion is widely used in physics (particle diffusion)‚ chemistry‚ biology‚ sociology‚ economics‚ and finance (diffusion of people‚ ideas and of price values)
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cholesterol‚ glycoprotein‚ phospholipids‚ membrane protein‚ and glycolipid. A.lycoprotein B.Glycolipid C.Membrane protein D.holesterol E.Phospholipid Dr. D. Houston Community College Page 1 Cellular Transport: Diffusion and Osmosis 1. Define cellular homeostasis. How does the plasma membrane contribute to cellular homeostasis? Cellular homeostasis is the
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In this lab we will look at how molecules move across the membrane of a cell . Osmosis is the movement of water across a cell membrane.In osmosis the cell membrane is selectively permeable‚which allows for the membrane to control what types of substances that passes through.Transportation can either be passive or active.Passive transport does not require the use of added energy where as active transport requires the cell to use energy. Diffusion is the simplest form of passive transport. Using
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solutions (0.1 M) the mass of the carrot and potato tubers increases due to water moving into the protoplast of the cell from the sucrose solution by osmosis and at high concentrations of sucrose solutions (0.5 M) the mass of the carrot and potato tubers decreases due to water moving out of the protoplast of the cell to the sucrose solution by osmosis. At certain concentrations (0.18 M of the potato and 0.355 M for the carrot) the potato and carrot tubers don’t change in mass due to the water potential
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unicellular organism living in fresh water. Water is continually moving into the organism by osmosis (passive transport) and unless the excess water is removed the unicellular organism will explode/die. To prevent this‚ the unicellular organism has contractile vacuoles which collect and pump the Excess water out of the organism (active transport). contractile vacuole contractile vacuole osmosis hypotonic Plant cells in different solutions: phagocytosis diffusion Exocytosis:
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concentration of solute in the potato’s cytoplasm by measuring the change in mass after the process of osmosis. Materials and Equipment: Refer to Biology 12 Lab Manual – Investigation 13 Procedure: Refer to Biology 12 Lab Manual – Investigation 13 Data and Observations: The Potatoes change in mass after the process of Osmosis Test Tube # | Concentration of Sucrose Solution (mol/L) | Initial mass (g) | Final mass (g) | Change in mass (g) | Percentage change
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has lower. When testing hypertonic and hypotonic solutions to find out if water enters or leaves it is possible to deduce what concentration of solution will be isotonic and with this find the osmolarity. Water moves across the cell membrane by osmosis‚ and if the total concentration of all dissolved solutes is not equal in both sides‚ the water molecules will need to move in or out of the cell. It moves depends on whether the cells environments is isotonic‚ hypotonic or hypertonic. Isotonic is
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“Cell Transport Lab” Hypothesis: I hypothesis that there will be a movement of molecules out of the egg‚ and will move into the water solution. Osmosis will occur within the egg‚ and in the process the molecules of the egg will diffuse. Time (hrs) | Observations | Circumference (cm) | * 0 | * Egg is of normal weight and size * No membrane is being shown‚ and is almost perfect | * 14 centimeters | * 24 | * Egg has gotten larger taking in some of the water * Shell is soft
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