concentration. It’s also the main method by which small molecules move across the cell membrane. Since molecules are always moving and bumping into each other‚ the more molecules are in an area‚ the more collisions there will be. These collisions cause molecules to push away from each other. So‚ over time‚ the molecules of a substance will continue to spread out. Eventually‚ they will be spread evenly throughout the area. Osmosis is the diffusion of water. (when “the substance” that is diffusing is water)
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PLANT CELL AND ANIMAL CELL LECTURER : ENCIK AZHAR GROUP’S NAME : 2. Mohd Alimi 3. Suraya Hani 4. Norhaswana CONTENT INTRODUCTION 3 WHAT IS CELL? 4-5 HISTORY OF CELLS DISCOVERY 6 ANIMAL CELL 7 PLANT CELL
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Experiment title: Preparation of Biological Materials for Microscopic Examination Objectives: 1. To learn how to use a microscope. 2. To study the cell structure of starch grains‚ onion cells and cheek cells. 3. To differentiate the difference between starch grains‚ onion cells and cheek cells. Introduction: Microscope is an optical instrument use to magnify micro objects that hardly or impossible to be observed by naked eyes‚ so that the objects can be studied. Compound light microscope
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Osmosis Osmosis is just a special case of diffusion - where water diffuses through a membrane which has different concentrations on either side. Permeable means "allows anything to pass through". Membranes in cells allow small molecules (water) to pass through‚ but prevent bigger ones from passing. This is called "selectively permeable". Take a look at the following animation; If a selectively permeable membrane separates the two solutions‚ water moves through it in both directions at
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Pineapple (Ananas comosus) Skin Extract as main Component in making a Moisturizing Soap An Investigatory Project Presented to: Sir. Joseph Valdez A Faculty of Science Department Statefields School Inc. In Partial Fulfillment of the Requirements for SCIENCE 7 by: Angela Grace Soriano Jose Renz BrionesKyla Alessandra De AsasMiguel M. Andas September‚ 2014 Chapter I: Introduction Background of the Study Nowadays‚ people have
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follicle 3.Two halves of a styles form a mirror image of one another Symmetical balance 4.Coarse‚ medium‚ or fine is classified as Hair texture 5.Hair and nails are an appendage of the skin and are part of what body system Integumenaty system 6.Round shaped pathogenic bacteria that appear singly Cocci 7.The skin that lies beneath the free edge of the nail plate Hyponychium 8.What is the study of small living things‚ microorganisms Microbiology 9.In basic massage‚ practitioner should avoid
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power an iPod with a Gatorade-soaked onion doesn’t work. Many Internet users today have made the same discovery after viewing the video in question‚ produced by the Web site HouseholdHacker.com. First‚ let’s examine the idea of powering any electronic device with a fruit or vegetable. The concept is believable because you can create a battery with a few potatoes. This experiment is a science class favorite because it helps demonstrate how the galvanic cells that make up a car battery work.
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Observing and deciphering Chemical Changes Purpose The purpose of this experiment is to observe reactions of chemicals that can be found in consumer products. Through observation‚ students should be able to interpret the chemical reactions and determine some characteristics‚ such as pH and solubility. Method 1. Pipets containing chemicals will be opened using scissors to snip the end and each pipet will be placed in a well of a 24-well plate. The scissors must be washed between each pipet. 2
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The MODIS is the primary instrument in the NASA Earth Observing System (EOS) Terra and Aqua satellites‚ which were launched in December 1999 and May 2002 respectively‚ for the purpose of monitoring the seasonality of global terrestrial vegetation. MODIS is a multi-spectral sensor with 36 discrete spectral bands ranging from visible‚ near infrared‚ to thermal infrared‚ which has been extensively used for land‚ ocean and atmosphere research. The equatorial crossing time for Terra and Aqua satellites
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process of osmosis and its importance to living organisms Osmosis is the process by which there is a net movement of water through a semi permeable membrane from an area of high water potential to an area of low water potential. Within a cell‚ osmosis has the following effect. If the water potential of the cell is lower than that around the cell water will move across a concentration gradient into the cell. If this is the case‚ the increase in water in the cell‚ may cause the cell to swell‚ which
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