movement of water molecules from an area of high concentration to an area of low concentration (Brown 1999). Hypertonic is the solution with a higher salt concentration. Hypotonic solution is the solution with the lower salt concentration. My hypothesis is that the potato core will increase in size. When the solution is hypertonic‚ the potato will decrease in size making the potato hypotonic. Osmosis is really interesting‚ that is why I chose to write this report about it. Materials and Methods We
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water is hypertonic so for the body to reach equilibrium with saltwater‚ water from the blood cells are sent out into the lungs to balance everything out. When the blood stream is drained of water “the blood in the
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Chapter 7 Study Guide Cell Structure and Function Section 71: Robert Hooke used an early compound microscope to look at a thin slice of cork. It seemed to make tiny empty chambers (cells). Anton van Leeuwenhoek used a singlelens microscope to observe pond water & other things. The microscope revealed a world of tiny living organisms that seemed to be everywhere. Matthias Schleiden concluded that all plants were made up of cells. Theodor Schwann stated that all animals were made up of cells
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vacuole’s membrane‚ acts with the cell membrane of the cell to prevent the betacyanin from leaking into the cytosol or out of the cell. This lab investigates the environmental possibilities that can damage membranes. Hypertonic and hypotonic salt solutions place stress on cell membranes‚ detergents make lipids more water-soluble and disrupt membranes‚ and acidic and basic pH’s denature proteins and change the color of the betacyanin. The spectrophotometer
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random motion due to the collision between molecules of solute and that of the solvent. II. OBJECTIVES 1. Describe how diffusion takes place. 2. Distinguish between diffusion and osmosis. 3. Demonstrate osmosis in cells. 4. Describe hypotonic‚ isotonic‚ and hypertonic solutions. 5. Explain the effect of the different salt concentrations on cells III. PROCEDURE A. Diffusion of Solid in Water A pinch of potassium permanganate was dropped into a 250ml beaker containing water. The beaker was left undisturbed
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Which of the following is least likely to increase the rate of diffusion? - small concentration gradient In general‚ to maintain homeostasis the relationship between our intracellular and extracellular fluids should be which of the following? - isotonic
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Know the differences between active vs. passive transport and how the subtypes of each work o Subtypes of passive transport- simple diffusion‚ facilitated diffusion- carrier mediated and channel mediated‚ osmosis o Be able to identify isotonic‚ hypertonic or hypotonic solutions and know what happens to a cell placed in each of these types of solutions. o Subtypes of active transport- primary active transport- main system = K+/Na+ pump to maintain the higher gradient of K+ inside the cell and Na+ outside
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osmosis different concentrations of solutes are compared. A solution that has equal concentrations of solute is isotonic. A solution with a higher concentration of solutes is hypertonic and one with less concentration of solutes is hypotonic. “The term osmolarity is used to describe the number of solute particles in a volume of Gluid. Osmoles
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Introduction This experiment was osmosis and diffusion. In this experiment I began by calculating the volume of a fresh chicken egg. Then to determine the effect of osmotic pressure change on a cell I soaked the raw chicken egg in vinegar for 24 hrs‚ and measured the volume of the egg after the shell had been dissolved by the vinegar. The egg was then submerged in corn syrup for 1-24 hrs‚ then measured and recorded the new egg volume. Finally the egg was submerged in water for 1-24hrs‚ again the
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Fluid and Electrolytes Homeostasis t State of equilibrium in internal environment of body‚ naturally maintained by adaptive responses that promote healthy survival t Body fluids and electrolytes play an important role Water Content of the Body t Accounts for 60% of body weight in adult t 70-80% of body weight in infant t Varies with gender‚ body mass‚ and age Compartments t Intracellular fluid (ICF) t Extracellular fluid (ECF) l Intravascular (plasma) l Interstitial t Transcellular
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