Cell membranes are a bilayer make up of phospholipids‚ proteins‚ and cholesterol. Its main function is to regulate what comes in and out of the cell by means of diffusion‚ transport proteins and protein channels. Trans membrane proteins transport polar solutes across hydrophobic regions of the bilayer. Diffusion occurs when solutes are transferred from a high concentration of that solute to a lower concentration of solutes. Solutes do not depend on the concentration of other solutes‚ which allows
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Chelation Therapy 1. Chelation is a process by which a chemical substance is utilized by doctors‚ to bind with metallic molecules or minerals and therefore aid in their removal from the body. Chelation is widely used to expel excess or toxic substances metals from the body before they can cause any damage to the body. Chelation Therapy works on the principle that when a complex amino acid called Ethylenediaminetetraacetic acid (EDTA)‚ comes into contact with various positively charged heavy
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GATE 2011 Syllabus for Biotechnology Linear Algebra: Matrices and determinants‚ Systems of linear equations‚ Eigen values and Eigen vectors. Calculus: Limit‚ continuity and differentiability‚ Partial derivatives‚ Maxima and minima‚ Sequences and series‚ Test for convergence‚ Fourier Series. Differential Equations: Linear and nonlinear first order ODEs‚ higher order ODEs with constant coefficients‚ Cauchy’s and Euler’s equations‚ Laplace transforms‚ PDE- Laplace‚ heat and wave equations.
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7 properties of Life |Description/Examples | | |Order |All living things exhibit complex but ordered organization; structure of a pinecone | |Regulation |The environment outside of the organism may change drastically‚ but the organism can adjust its internal | | |environment keeping it within appropriate limits; temperature (shivering and sweating) | |Growth & Development |Information carried
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Pathophysiology of the human immunodeficiency virus Nancy R. Calles‚ MSN‚ RN‚ PNP‚ ACRN‚ MPH Desiree Evans‚ MD‚ MPH DeLouis Terlonge‚ MD Objectives 1. 2. 3. 4. 5. Provide an overview of the healthy immune system. Describe the human immunodeficiency virus (HIV). Describe the major components of the HIV life cycle. Identify the various HIV types and subtypes. Discuss HIV’s effects on the immune system. Overview The human immunodeficiency virus (HIV) is a retrovirus belonging to the family of lentiviruses
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UNIT 1 – What is Biology? What is biology? the study of living organisms‚ divided into many specialized fields that cover their morphology‚ physiology‚ anatomy‚ behavior‚ origin‚ and distribution. Biotic vs. abiotic factors Biotic- living factors i.e. plants‚ animals‚ fungi‚ bacteria‚ and protest Abiotic- nonliving factors that affect living organisms. Environmental factors: habitat & weather 7 Characteristics of living things (Bio 3 Book Ch. 1) Uni-cellular vs. Multi-cellular Uni-Cellular-
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structure of phospholipids is responsible for the basic function of membranes as barriers between two aqueous compartments. Because the interior of the phospholipid bilayer is occupied by hydrophobic fatty acid chains‚ the membrane is impermeable to water-soluble molecules‚ including ions and most biological molecules. Second‚ bilayers of the naturally occurring phospholipids are viscous fluids‚ not solids. The fatty acids of most natural phospholipids have one or more double bonds‚ which introduce
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Table of Contents Contents Page No. Task 01 1.1How Archaea is similar to Eukaryotes and how they differ from Bacteria………..02 1.2: Importance of co-ordination between sub cellular organelles in Eukaryotic cell‚ using protein synthesis and transportation within cells…….…………………04 1.3 Explain the role of different types of transporters in cell membrane……………....07 Task 02 2.1 Explain how in each stage of
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structural stability to the cell and also limits the permeability of large substances into and out of the cell. Within the cell wall‚ surrounding the cytoplasm is the cell membrane which is a semi-permeable membrane consisting of a phospholipid bilayer. The bilayer consists of phospholipids which arrange themselves so that the hydrophobic (‘water hating’) tails are shielded from the surrounding water. The heads of the molecules are hydrophilic (‘water loving’) and face the water. Overall‚ the cell membrane
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interchange of materials between the cell and its environment. The main areas of its structure are a bilayer of phospholipids‚ and proteins. The phospholipids are responsible for the isolation from its surroundings; it can allow or not allow certain substances in or out. The proteins are responsible for helping the cell communicate with its environment. Proteins also help move molecules through the bilayer. The plasma membrane is located on the outside of animal cells or beneath the cell wall on plant
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