"Sucrose in onion tissue" Essays and Research Papers

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    carbohydrates are an important storage and transport form of energy in most organisms‚ including plants and animals. Carbohydrates are classified by their number of sugar units: monosaccharides (such as glucose and fructose)‚ disaccharides (such as sucrose and lactose)‚ and polysaccharides (such as starch‚ glycogen‚ and cellulose). B) Lipids Lipids are one class of aliphatic hydrocarbon-containing organic compounds essential for the structure and function of living cells. Lipids are characterized

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    Osmosis

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    of Diffusion and Osmosis Table of Contents Lab # 1 Experiment Components Experiment Requirements Background Information Experiment Procedures Experiment Overview PART A. Diffusion and Dialysis PART B. Osmosis PART C. Water Potential PART D. Onion Cell Plasmolysis Study Questions Instructor ’s Guidelines Notes to the Instructor Pre-Lab Preparations Experiment Results and Analysis Study Questions and Answers Material Safety Data Sheets Page 3 3 4 10 11 12 16 20 21 23 24 26 29 31 Advanced

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    Biology By2 Revision

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    = diffusion) - Male & female sex organs (gut can only accommodate 1 tapeworm) - Number of eggs produced (increase chance of survival) - Eggs have resistant shells (survive until eaten) Dormant embryos can form cysts in organs - damage surrounding tissue BY2 revision Page 1 Adaptions to different diets 21 May 2011 10:53 Reptiles & Amphibians = swallow food whole Mammals = cut up and chew (palate separates nasal cavity & mouth - kept in mouth longer) Carnivore = short gut (easily digest

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    Cellular Rspiration

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    Cellular Respiration Objective: To observe and determine cellular respiration in yeast/onion cells. * Measure respiration rate using different substrates. * Measure respiration rate at different temperature. Introduction: In this laboratory experiment‚ we are given 3 task. The first one is respiration in yeast. Second is respiratory indicator and the third one is observing mitochondria in yeast/onion cell. The first experiment is about investigation of sugars yeast. We will determine

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    OSMOTIC POTENTIAL OF CELL SAP OF PLANT EPIDERMAL CELLS Aim: The purpose of this experiment is to investigate the effects that the molarity of the sucrose solution and distilled water have on the plasmolisys of epidermal cells of a red onion. Hypothesis: Taking in consideration osmosis‚ and my knowledge about it‚ my prediction is that as the molarity of the solution under which the cells are exposed will increase‚ also the amount of plasmolysed cells‚ counted from amount of undamaged cells

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    Experiment 4 Lab Review

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    Carbohydrates: monosaccharides‚ disaccharides‚ and polysaccharides.  Monosaccharides are the simple sugars.  Two monosaccharides make a disaccharide.  Three or more monosaccharides are a polysaccharide.  Glucose‚ fructose‚ and galactose are monosaccharides.  Sucrose‚ lactose‚ and maltose are disaccharides.  Starch and glycogen are polysaccharides.  Simple sugars can be found by using Benedict’s test. Starch will react with IKI to give a dark blue color change. Lipids are macromolecules that are usually insoluble

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    Organic Molecules

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    are reducing sugars. Variables: a. Independent: Function groups react w/ reagent b. Dependent: Color change (red‚ orange‚ yellow) Control: Water Materials: - 4 mL of each solution (Water‚ Starch‚ Glucose‚ Maltose‚ SucroseOnion Juice‚ Potato slice‚ Milk) - 8 test tubes - 8 pipetes - Benedicts regagent - 150 mL of water - Beaker - 1 pair of tongs - Test tube rack - Hot plate - Dropper - Timer Procedure:

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    better understand the movement of water through cells. This will be done by putting cores of apple tissue in sucrose solutions of different concentrations and measuring the changes in mass of the apple cores. The changes in mass reflect the movement of water into or out of the tissue. After determining the concentration of sucrose solution at which there is no net gain or loss of water from the apple tissue‚ the osmotic potential can be calculated. This will then tell the water potential of the apple

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    test‚ Sudan IV test‚ Biuret’s Test and the Grease-Spot test‚ also explain the importance of a positive and negative control. ! ! ! ! ALL MATERIALS! 1. Test tubes! 2. Benedict’s solution! 3. Iodine! 4. Water-bath ! 5. Onion juice! 6. Potato juice! 7. Sucrose juice! 8. Glucose juice! 9. Distilled water! 10. Reducing-sugar solution! 11. Starch solution! 12. Sodium hydroxide (NaOH)! 13. Egg albumen! 14. Honey! 15. Amino acid solution! 16. Protein solution! 17. Water! 18. Acetone

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    Biology Ap Lab Report

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    introduced with the Iodine solution? Hypothesis: * If a solution is rich in starch then it will react with iodine solution and change to a bluish-black color (looks Brown) Materials: Items: * 8 test tubes‚ pipet‚ iodine‚ onion juice‚ potato juice‚ sucrose solution‚ glucose solution‚ distilled water‚ fructose solution‚ starch solution‚ & beats juice Safety Concerns: * If the iodine touches skin it might burn * Everything smells bad chance of vomiting Procedure: 1. Get

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