The higher the solute in solvent‚ then there will be a higher rate of osmosis through the diffusion gradient forming a hypertonic or hypotonic solution. Solvent with equal or no solute forms an isotonic solution. Materials: Distilled water‚ sucrose‚ dialysis tubing‚ string‚ 250 ml beaker. Procedure: To demonstrate and isotonic solution we needed 3 inches of dialysis tubing. We tied off one end of the dialysis tubing to create a bag‚ filled it with distilled water‚ and tie of other end to
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Digestion define as a process where foods been breaking down by enzymatic action in the Gastrointestinal tract (GI tract) into nutrients in preparation for absorption. GI tract is the flexible muscular tube from mouth to anus. The digestion of carbohydrates begin in the mouth‚ where an enzyme‚ salivary amylase (α-amylase;ptyalin) starts to breaking the polysaccharides (starch) into short polysaccharides (dextrin). Dextrin is a partial degradation of starch‚ shorter chains of maltose units. Salivary
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tests will record positive (+) reactions or negative (‐) reactions to fructose‚ sucrose‚ cellulose‚ starch‚ lactose and an unknown carbohydrate. Observations and Results Report your test results in a tabular format • Record the bacteria identified in each of the Four Media Tests. Test Bacterium 1 Test Bacterium 2 Test Bacterium 3 Test Bacterium 4 Gram Stain Gas from Glucose Acid from Glucose Sucrose Lactose Identification Initial color of medium in Gas and Acid from
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Materials and Method: The experiment was started by adding 10ml of the water-yeast solution to each fermentation tube. There were 12 fermentation tubes that needed 10ml of the solution. Then‚ 3 grams of Sucrose were added to the positive control fermentation tubes. For two of the fermentation tubes‚ 1 gram of Truvia was added‚ and for another two fermentation tubes‚ there was 2 grams of Truvia added. Then‚ 3 grams of Truvia were added into two more tubes
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The aim of the sixteenth of November experiments was to observe how three different solutions with various sucrose concentration influenced osmosis in relation to three onion cells and the impact on the cells structure. A small square of a red onion skin (membrane) was observed under a microscope at high power (X40) magnification. The observation showed a large number of onion cells. The structure of one onion cell had a general rectangular shape with a developed cell wall‚ which gives the rectangular
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Phenol | C6H5OH | 43.0 | 7.40 | 181.0 | 3.56 | Use the previous formula and the constant from Table 1 to calculate the temperature at which a solution of 50 grams of sucrose (C12H22O11) in 400 grams of water will freeze. The molecular weight of sucrose is 12(12.01) + 22(1.01) + 11(16.00) = 342.34 g/mole so‚ the number of moles of sucrose is and the concentration of the solution in moles per kilogram of water is By taking the freezing point constant for water as 1.86 from Table and then substituting
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3. Describe the differences between animal and plant cells. Although plant and animal cells both have mitochondria‚ cytoplasm‚ and ribosomes they differ in many ways. Animal cells do not have a cell wall and are round with irregular shapes. Centrioles are also present in all animal cells‚ as well as most eukaryotic cells. Plant cells only have centrioles if they are in the lower plant species. Both types of cells have vacuoles‚ but their functions are quite different. The purpose of vacuoles in
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cylinder to measure 1 mL of the 1.0 M sucrose solution and use the “DW” pipet to add 4 mL of distilled water to test tube “b”‚ which is now a .2 M solution. Then use the graduated cylinder to measure 2 mL of 1.0 M sucrose solution and add 3 mL of distilled water to test tube “c”‚ which this creates a .4 M solution. Measure 3 mL of 1.0 M sucrose and 2 mL of distilled water to test tube “d”‚ which then creates the .6 M solution. Measure 4 mL of the 1.0 M sucrose solution and 1 mL of distilled water
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hypogaea L.‚ as Influenced by Plant Growth Regulators‚ Sucrose and pH1 Q. L. Feng‚ H . E. Pattee*‚ and H. T. Stalkef ABSTRACT Research on in vitro embryo culture in Arachis has the objective ofrescuinginterspecific hybridembryos which abort before they reach maturity. This study explored effects ofthe three exogenous plant growth regulators 1naphthaleneacetic acid (NAA)‚ gibberellic acid (GA‚)‚ and 6-benzylaminopurine (6-BAP); sucrose; and medium pH on in vitro fruit and embryo development
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Northern Kentucky University BIO 150L: Introduction to Biology I Instructor: Dr. Bethany Bowling Osmosis and Diffusion Report Estimating the Osmolarity of Plant Cells--Potato YAO ZHANG 03/26/2012 Introduction: It is undeniable that all cells have the kinetic energy. It will led the cells move randomly around to others. For this molecular movement‚ there are two results that might happen. Diffusion is one of them. Diffusion is the movement of molecules that between the
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