little read: ... The cell membrane structure-Fluid mosaic model The cell membrane separates a watery cytoplasm from a watery external environment also known as ECF. The phospholipids are arranged in a double layer (lipid layer) with the hydrophilic heads facing outward (cytoplasm or ECF) and the hydrophilic tails turned in towards each other. The unsaturated fatty acids are not bonded to each other and form a fluid. Fluid Mosaic model. The term "fluid" is used because the phospholipid molecules and
Premium Protein Cell membrane Lipid bilayer
Biaxial stress & strain Poisson’s ratio σx = E1-v2 (εx + vεy) εx = 1E (σx - vσy) Uniaxial: v = - εyεx σy = E1-v2 (εy + vεx) εy = 1E (σy - vσx) Biaxial: v = E2G - 1 εz = - vE (σx + σy) Triaxial stress & strain
Premium Shear stress Force Fluid
Viscosity Science Lab Purpose: To determine of changing the viscosity will affect the time it takes for a marble to flow through a liquid. Hypothesis: If a marble is dropped into dish soap and corn syrup‚ than I predict that the marble in the dish soap will travel faster than the marble in the corn syrup because I know that the viscosity of the corn syrup is thicker than then the viscosity of the dish soap. Also‚ the particles in the corn syrup are more compact than those in the dish soap
Premium Viscosity Liquid Scientific method
which stage of life is the percentage of fluid in the human body highest? Infancy 2. In elderly individuals‚ 75% of body weight is made up of fluid. True False 3. When comparing two individuals of the same body weight‚ the one with more muscle and less fat will have a higher percentage of fluid in their body. 4. When comparing a lean adult female to a lean adult male‚ which will most likely have a higher percentage of body fluid? The Male 5. Fluid imbalances are more common in individuals
Premium Blood Carbon dioxide Potassium
2013/2014 Assignment 1 (10 marks) Answer ALL the questions. 1. Discuss briefly fluid mosaic model for membrane structure. (6 marks) Answer: The lipids and most of the protein in the plasma membrane are free to bob about‚ sliding from one location in the membrane to another. Because lipids and proteins move about laterally within the membrane‚ the membrane is a fluid mosaic of lipids and proteins. The membrane fluid is since the composition of any location on the membrane can change. In the same
Premium Cell membrane Protein
Fluid Catalytic Cracking Fluid catalytic cracking* (FCC) is the most important conversion process used in petroleum refineries. It is widely used to convert the high-boiling hydrocarbonfractions of petroleum crude oils into more valuable [1][2][3] gasoline‚ olefinic gases and other products. . Cracking of petroleum hydrocarbons for conversion of heavy fractions into lighter fractions was originally done by thermal cracking which has been almost completely replaced by catalytic cracking because
Premium Petroleum Oil refinery
Extracellular and Intracellular fluid The first thing to be explained is intracellular fluid and extracellular fluid. Intracellular fluid is the liquid that is found inside cells. Extracellular fluid is found in things like plasma and this stands for all the body fluid outside of the cells. Intracellular fluid is separated by membranes and put into compartments. Electrolytes Electrolytes are found in the blood‚ urine and fluid inside cells in the body and in the space surrounding them. There are
Premium Water Dehydration Potassium
P4 – Explain the role of the kidney in the homeostatic control of fluid balance Homeostasis is how our body works to keep the internal environment constant. The kidneys play a role in the control of fluid balance. For this assignment I will be discussing the gross anatomy of the renal system and the kidney. Renal System The renal system is a group of organs that work together to produce‚ store‚ and release urine. It consists of 2 kidneys‚ ureters‚ the urinary bladder‚ urethra and renal vessels which
Free Kidney Nephron
Basics of Fluid Mechanics Genick Bar–Meir‚ Ph. D. 2729 West Jarvis Ave Chicago‚ IL 60645-1335 email:barmeir at gmail.com Copyright © 2010‚ 2009‚ 2008‚ 2007‚ and 2006 by Genick Bar-Meir See the file copying.fdl or copyright.tex for copying conditions. Version (0.2.4 March 2‚ 2010) ‘We are like dwarfs sitting on the shoulders of giants” from The Metalogicon by John in 1159 CONTENTS Nomenclature GNU Free Documentation License . . . . . . . . . . . . . . . . 1. APPLICABILITY AND DEFINITIONS
Premium Viscosity
describing the differences between intracellular fluid and extracellular fluid in the first observation is completely obvious. When reading the words intracellular and extracellular it can be seen that one is the interior of the cell and the other is the exterior of the cell. Intracellular fluid is restricted to the interior of the cell‚ and the cell membrane is the borderline of cytosol or cytoplasmic matrix. The compartments of the intracellular fluid are very important to know‚ as it contains mostly
Premium Potassium Cell membrane Blood