(Solute concentration) of a Potato? ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- Design ------------------------------------------------- ------------------------------------------------- 1. What is the dependent variable for this experiment? ------------------------------------------------- The dependent variable is the concentration (solute) of the potato. -------------------------------------------------
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that affects the rate of osmosis in a potato: * Time * Temperature * Molar * Sucrose solution * NaCl solution * Concentration of liquid * Age of the potato * Variety of the potato * Potassium‚ K(AQ) Factor Chosen: Different Molar of Sucrose Solution In this investigation I will change the molar of sucrose solution to find the increase or decrease in mass change and also the higher or lower the mass change of the potato chip from its original weight will determine
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Living a Salty Life‚ http://www.lucasbrouwers.nl/blog/2009/11/living-a-salty-life/‚ date viewed: 10/03/13 Osmosis and The Water Potential of a Potato‚ http://biology.clemson.edu/bpc/bp/lab/110/osmosis.htm‚ Robert. J. Koninski‚ last update: October 2012‚ date viewed: 04/03/13 Potato in Osmosis Core‚ http://biology.clemson.edu/bpc/bp/Lab/110/handouts/Potato%20Osmosis%20OMP.pdf‚ date viewed: 02/03/13
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Title: Screening of Cellulolytic Activity of Locally Isolated Thermophilic Fungi Title : Screening of Cellulolytic Activity of Locally Isolated Thermophilic Fungi Objective : To screen for thermophilic fungi as producer of fungal cellulase. Introduction One of the most important sources of carbon that is abundantly found on this planet is cellulose. While cellulase is the enzyme to degrade this carbon and it is a key enzyme in the bio refinery process of producing green chemicals
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potential to solute concentration and water potential [NOTE: You may want to look over Lab 1a to refresh your memory!] EXERCISE 1b-A: DETERMINING THE WATER POTENTIAL OF POTATO CELLS In this exercise you will use potato cores placed in different molar concentrations of sucrose in order to determine the water potential of potato cells. First‚ however‚ we will explore what is meant by the term "water potential." Water Potential. Water potential is abbreviated by the Greek letter psi (ψ). Water potential
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rate of osmosis Hypothesis: The more hypertonic potato pieces are to a saline solution‚ the more weight the potato will gain. However‚ the potato pieces will decrease in weight when they are placed in a hypotonic solution. Dependent variables: • Change in mass of pieces of potatoes. Independent variables: • solutions sucrose concentrations. Controlled variables: • amount of time in the solutions • surface area of the potato segments Factors held constant: Identify and
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instructor. Observations Data Table 1: Comparison of States of Tonicity Test Tube Solute/Solvent Appearance of Potato Strip Type of Tonicity Gradient: Is the potato strip in a Hypertonic‚ Hypotonic‚ or Isotonic at the beginning of this exercise? 1 Distilled Water Bigger Hypotonic 2 10% NaClWithered Hypertonic Data Table 2: Comparison of Turgor Pressure States in Elodea Leaf Cells Solute/Solvent
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Transformation of Amyloplasts into Chloroplasts in Potato Tubers’ Received for publication November 9‚ 1983 and in revised form January 19‚ 1984 YU S. ZHU‚ DENISE L. MERKLE-LEHMAN‚ SHAIN D. KUNG* Department of Biological Sciences‚ University of Maryland Baltimore County‚ Catonsville‚ Maryland 21228 ABSTRACT The transformation of amyloplast into chloroplasts in potato (Solawum tuberosum L.) tuber tissue can be induced by light. Excised potato tuber discs illuminated with white light of 3000
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I predict that if the potato has a neutral pH (close to 7)‚ then the function of catalase will be at its maximum capacity because our bodies have a neutral pH and our livers‚ which contain catalase‚ work perfectly fine even in these conditions. This study is worth pursuing because
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Topic: Osmosis Materials: Potato cylinders‚ 20 percent sodium chloride solution‚ three test-tubes‚ test-tube rack‚ scalpel blade‚ Gel ink pen‚ syringe-10cm^3‚ Plastic ruler with mm‚ tile‚ forceps filter paper‚ Masking tape. Method: 1) Three test-tubes‚ A‚ B and C were labeled and initials of experimenters were applied with the date: January 29‚ 2013. 2) A syringe was used to put 10cm^3 of water in tube A and 5cm^3 in tube B along with 5cm^ 20 percent sodium chloride solution and 10cm^3 20 percent
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