LABORATORY REPORT Activity: Influence of Fluid Intake on Urine Formation Name: Miriam Rivera Instructor: Renee Faulcon Date: 09.09.2014 Predictions Urine output will be highest during water loading Urine osmolarity will be highest during water loading Plasma osmolarity increases with dehydration Materials and Methods Dependent Variable urine and plasma values Independent Variable fluid intake Controlled Variables room temperature‚ age‚ gender‚ and weight 4. Subjects were asked to refrain
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Temperature * As you warm up the solution‚ the particles will move faster to lose or gain chemicals quicker. * Type of cell/tissue * Leaf cell may take up different amount of water compared to root cell. * Leaf cell – more solutes * Root cell – less solutes * Type of vegetable/plant * Cucumber – lots of water * Potato – very dry * Time of immersion * You must be on equilibrium set up. * Surface Area/Size of Sample * The larger
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of osmosis of tap water of Solanum tuberosum L. Solanum tuberosum L.‚ also known as potato‚ was the selected plant to be tested because it was easy to measure the percentage change in mass due to the osmosis of water into the tissue. RESEARCH QUESTION How does the surface area to volume ratio of potato tissue (Solanum tuberosum L.) affect the rate of osmosis of tap water? HYPOTHESIS The smallest cube of potato (1x1x1)‚ having a higher surface area to volume ratio‚ will have the fastest rate of
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contain the ideas or writing of other individuals/authors. _Alexandra DeWitt_____________ __5/1/13____________ Author Date _10_________ Lab Section # Increasing Sucrose Concentrations Causes the Osmotic Concentrations of Disks of Potato Tubers to Decrease Abstract: Introduction: The biological membranes are composed of phospholipid bilayers‚ each phospholipid with hydrophilic heads and hydrophobic tails‚ and proteins. This arrangement of the proteins and lipids produces a selectively
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of Bonn; Bonn‚ Germany; 3Centro Nacional de Biotecnología; Consejo Superior de Investigaciones Científicas; Campus Universidad Autónoma de Madrid; Madrid‚ Spain Key words: BAHD feruloyl acyltransferases‚ ferulate‚ periderm‚ potato tuber skin‚ suberin‚ suberized tissues‚ wax Abbreviations: TEM‚ transmission electron microscope; SEM‚ scanning electron microscope; FHT‚ ω-hydroxyacid/fatty alcohol hydroxycinnamoyl transferase; GPAT5‚ glycerol phosphate acyltransferase 5 and to restrict infection.
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Chapter 18 The Circulatory System: Blood True / False Questions 1. Hemostasis is the production of formed elements of blood. Difficulty Level: Remember/Understand Section: 18.1 Introduction Topic: Cardiovascular System 2. Blood viscosity stems mainly from electrolytes and monomers dissolved in plasma. Difficulty Level: Remember/Understand Section: 18.1 Introduction Topic: Cardiovascular System 3. Lymphoid hemopoiesis occurs mainly in the bone marrow.
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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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kidney produces hyperosmolar urine. (concentrated urine) In the renal cortex the osmolarity of interstitial fluid is 300mOs/L going to 1200mOs/L in the papilla. From the cortex to the papilla there is an increasing hyper osmolarity of the interstitial fluid. Cortico papillary osmolarity gradient. Urine with osmolarity more than 300mOs/l is hypertonic. Urine with osmolarity 300mOs/l is isotonic. Urine of osmolarity below 300mOs/l is hypotonic. How is cortico papillary gradient is made 1
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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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fundamental life functions‚ although certain ones may be specialized for participation in reproductive processes. In the most advanced plants‚ cells are associated in functionally specialized tissues‚ and associated tissues make up organs such as the leaves‚ stem‚ and root. Practically‚ every cell in the tissue of higher plants is a tiny‚ many-sided compartment enclosed by a water-impregnated wall otherwise composed principally of cellulose and other compounds closely related to carbohydrates. Plant
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