Lecture: Plasma Membrane and Transport I. Structure of the Plasma Membrane A. plasma membrane - the surface encapsulating a cell B. Fluid Mosaic Model 1. bilayer of phospholipids a. hydrophilic heads - P04 end "water" "loving" attracted to water on inner/outer parts of cell b. hydrophobic tails - fatty acids "water" "fearing" attracted to each other on inside of bilayer c
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Plasma Complexity! Plasma is said to a substance similar to gas in which a certain portion of the particles are ionized. The basic premise is that heating a gas dissociates its molecular bonds‚ rendering it into its constituent atoms. Further heating leads ionization‚ turning it into plasma: containing charged particles‚ positive ions and negative electrons. The presence of a non-negligible number of charge carriers makes the plasma electrically conductive so that it responds strongly to electromagnetic
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Viscosity Lab Report. CITY UNIVERITY LONDON SCHOOL OF ENGINEERING AND MATHEMATICAL SCIENCES 1. Abstract. In this experiment the viscosity of pure glycerol and a glycerol – water mixture are measured. At the end of the test it is apparent that glycerol is a near perfect Newtonian fluid and that it is more viscous than water. We also can appreciate how viscosity varies within a given temperature range. 2. Introduction. The purpose of this experiment was to find the viscosity of
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The plasma or cell membrane exhibits ability for the cell to discriminate in its chemical exchanges with its environment and this makes cell membrane fundamental to life. This property can only be possible because of the cell membrane’s selective permeability (Campbell and Reece‚ 2002). The structure of the membrane can be best illustrated by the fluid mosaic model where the membrane is said to be a fluid structure with various proteins embedded in or attached to a bilayer of phospholipids (Campbell
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Electrolyte Challenge Sport Drinks vs. Orange Juice By: Clem L. Vinegar Jr. Mr. Wells February 2‚ 2013 I. Project Question- The question I am trying to answer is which drink between water‚ Gatorade‚ propel‚ PowerAde‚ and a homemade drink. II. Hypothesis- My hypothesis is that orange juice will have more electrolytes than the other drinks because of the natural electrolytes it contains from oranges. I also think that Gatorade will be the most preferred
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Brayden Shaver Electrolytes in Sports Drinks September 30‚ 2016 Electrolytes in Sports Drinks Drinks are full of many substances that make up the taste‚ color‚ and uses of the beverages. One very important part of a sports drink are electrolytes. An electrolyte is a liquid gel that contains ions and can be decomposed by electrolysis‚ it is present in a battery. This substance is in many of the everyday drinks we use. From the orange juice we drink in the morning to the many sports drinks
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Sean Byrne Teacher Biology Honors 13 August 2014 Unit 1 Chapter 3 1) a. Monomers are small‚ simple molecules that when put together create carbon compounds‚ and polymers are molecules that consist of repeated units. b. Functional groups are made of clusters of atoms‚ while macromolecules are large polymers. c. A monosaccharide is a simple sugar‚ but a disaccharide is known as a double sugar‚ or two monosaccharaides. d. Long chains of amino acids are called polypeptides‚ and proteins are composed
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container. The following is a sample calculation done for 2 mm diameter. The Average time for (2mm) ball =(1.62+1.54+1.60+1.63+1.55+1.78)/6=1.62 sec Terminal Velocity = Distance/(Time (avarge) ) = (0.252 m)/(1.62 s) =0.155 m/s Accordingly‚ viscosity was
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Scientific Discovery of Plasma. Plasma‚ the "Fourth State of Matter‚" was first identified in a Crookes tube‚ an experimental electrical discharge tube in which air is ionized by the application of a high voltage through a voltage coil‚ and it was described by Sir William Crookes‚ an English physicist‚ in 1879. It was first called "radiant matter”. However‚ Dr. Irving Langmuir‚ an American chemist and physicist‚ applied the word "Plasma" to ionized gas‚ in 1929. Plasma just happens to be the most
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first for 65 million years since the Cretaceous-Tertiary period. "It ’s the next annihilation of vast numbers of species. It is happening now‚ and we‚ the human race‚ are its cause ’ (Leakey‚ 1995). Every year‚ between 17‚000 and 100‚000 species vanish from our planet‚ which will result in fifty per cent of the Earth ’s species vanishing inside the next 100 years. What is the cause of such huge numbers of species vanishing?•Deforestation•Spreading agriculture•Pollution: Fossil fuels‚ greenhouse gases
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