of cooked beetroot? Introduction When cooking a beetroot you are recommended not to remove the outer skin and not to cut off the entire stalk if you do not want the red dye in the cooking water. Beetroot contains a red pigment called betalain‚ which is in the cell vacuole. Normally the betalain stays inside the cell‚ however when the cell is exposed to extreme temperatures they leak out. The reason why they leak out is because of the cell membrane structure. When the cell membrane is exposed
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The Effect of Ethanol on the Viability of Artemia salina as Environmental Indicators Biology 151 Laboratory ABSTRACT Artemia salina are used as environmental indicator species. They are used to test changes in their environment. A. salina is sensitive to toxins‚ temperature‚ and drugs. For the experiment‚ cysts were put into different amounts of ethanol alcohol and their viability was measured. The hypothesis used was if there is more ethanol alcohol‚ then the viability
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Cell Membranes and Transport Hands-On Labs‚ Inc. Version 42-0033-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing
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LAB REPORT 1 - LAB 7 CELL MEMBRANE FUNCTION Marisela Camacho Legarreta June 30‚ 2013 ACTIVITY 1 INTRODUCTION Be aware that all molecules have kinetic energy‚ which means that is an active energy that is always in motion. Molecules move in all different ways and this create an evenly distributed movement which is best known as diffusion. Diffusion is the movement of molecules from a region of their higher concentration to a lower concentration. METHODS Check the reaction of different
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is to determine the stress that various alcohols have on biological membranes. Membranes within cells are composed mainly of lipids and proteins and often serve to help maintain order within a cell by containing cellular materials. Different membranes have a variety of specific functions. One type of membrane-bound vacuole found in plant cells‚ the tonoplast‚ is quite large and usually contains water. In beet plants‚ this membrane-bound vacuole also contains a watersoluble red pigment‚ betacyanin
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PLASMA MEMBRANE SELECTIVE PERMEABILITY= allowing some substance to cross it more easily than others composed of: Phospholipids Proteins Carbohydrates Cholesterol FLUID MOSAIC MODEL Phospholipids are primary lipids(constantly moving‚ fluidly) AMPHIPATHIC-containing hydrophobic and hydrophilic regions Mosaic part=not made of one thing Freeze-fracture studies:way to view what’s inside FLUIDITY OF MEMBRANE Move within bilayer Most of lipids and some proteins‚ drift laterally
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and the listening have a conflict of opinions about ethanol fuel. The writer believes that ethanol fuel is not a suitable alternative for gasoline‚ while the lecturer claims that passage state is not convincing and disputes those ideas presented in the passage with several proofs. First of all‚ the author asserts that the ethanol fuel would not assist to fix global warming problem. Conversely‚ the lecturer brings up the idea that augmented of ethanol fuel does not adversely affect the environment. In
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viscosity‚ high paste clarity‚ and high freeze- thaw stability‚ which are advantageous to many industries. Ethanol is generally produced by the fermentation of sugar‚ cellulose or converted starch and has along history. In Nigeria‚ local production of ethanol from maze‚ guinea corn‚ millet‚ cassava and cellulose is as old as the country itself. Apart from food and pharmaceutical uses‚ ethanol is finding itself alternative uses for biofuel in most of the developed world for the reasons: it is not poisonous
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Classification of Body Membranes Laszlo Vass‚ Ed.D. Version 42-0010-00-01 Lab repOrt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent
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Cell Membrane Permeability and Osmosis Experiment 3 Objectives: To demonstrate the mechanism involved in Osmosis; To demonstrate the tonicity of solutions by subjecting the cells to different concentration of solute. To view‚ under the microscope‚ any change in the shape and volume of the cells after subjecting them to different concentrations of solutes; To demonstrate the permeability of cell membrane by subjecting the cells to different solutes; To demonstrate the mechanism involved in
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