Background Information: Cell Transport When molecules move from a high to low concentration it is called moving DOWN the concentration gradient. When molecules move from a low to high concentration it is called moving AGAINST the concentration gradient. When the concentration of a solute is the same throughout a system‚ the system is at EQUILIBRIUM. What kind of transport DOES NOT require energy? PASSIVE What kind of transport requires energy? ACTIVE Which CELL PART provides the energy for
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Biology Q. 1. Biological organisation starts with: a. Atomic level b. Submicroscopic molecular level c. Cellular level d. Organismic level Sol. Correct choice: (2) Q. 2. About 98 percent of the mass of every living organism is composed of just six elements including carbon‚ hydrogen‚ nitrogen‚ oxygen and: a. calcium and phosphorous b. phosphorus and sulphur c. sulphur and magnesium d. magnesium and sodium Sol. Correct choice: (1) Q. 3. Which one of the following is an example of negative
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CHAPTER 1 Cell Structure and Organisation Cells * All living organisms are made up of cells * The simplest living organisms have one cell only * His name is unicellular-e.g. bacteria. * Most other living organisms have many cells- his name is multicellular- e.g. Man‚ plants‚ animals. * Cells can be seen only under microscope Cell structure All cells have the following structure in common: a) Cell membrane- a very thin layer of protein and fat‚ surrounding the cell. It is
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Are Java and JavaScript the Same? NO! Java and JavaScript are two completely different languages in both concept and design! Java (developed by Sun Microsystems) is a powerful and much more complex programming language - in the same category as C and C++. {draw:rect} What can a JavaScript Do? JavaScript gives HTML designers a programming tool - HTML authors are normally not programmers‚ but JavaScript is a scripting language with a very simple syntax! Almost anyone can put small "snippets"
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11514-015) enhances transfection performance in HUVEC cells. • The addition of antibiotics to media during transfection may result in cell death Transfection of HMECs Use this procedure to transfect plasmid DNA into HMECs cells in a 12-well format All amounts and volumes are given on a per well basis. 1. Cell density should be 50~80% confluent on the day of transfection (use the normal growth medium without antibiotics). 2. For each well of cells to be transfected‚ dilute 1 μg of DNA into 200
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My favorite color is white. It’s a symbol for peaceful. white color is nothing but a without color. It seems cool. We can reduce the any of the bright colors to light colors by adding them white color. not only me most of the people in the world likes white color only....bec’z we can see the white color every where in the world‚ every where in our surroundings unlike other colors. My favourite colour is Red. Because Red is the color that we pay the most attention to. It is the warmest and most
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1 The Effect of Molecular Weight on the Rate of Diffusion of Substances1 Alexander Ken Libranza Group 1 Sec. A – 1L March 6‚ 2012 A scientific paper submitted in partial fulfillment of the requirements in General Biology I laboratory under Prof. Cheryl M. Talde‚ 2nd sem.‚ 2011-2012. 1 2 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using two tests: the glass tube test and the agar-water gel test. In the glass tube set-up‚ two cotton plugs soaked
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What I Want I always wanted to have lots of things since I was a kid. I wanted sport balls‚ toys‚ games‚ iPods‚ a brother and so much more‚ but the most I wanted was my very own phone. There was a time when I really wanted a phone but was not able to get it because it costs too much and because I am too young. Everyone in school and all my friends started getting a phone but I wasn’t able to. I was not too or desperate for getting a phone then until I started working. At first I would work with
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Essays Writing 2203 Name: Leonardo Pereira da Silva Writing 2203 Ms: Kennedy‚ L. October 18th‚ 2013 My First Kiss It’s hard to believe‚ but my first kiss was on a bus on the way back from school. And who knows? With my best friend! Can you believe it? So that was cool. Neither I nor she knew exactly what “the kiss“ was. Only movies. We were inexperienced on this subject‚ and scared to death. But we learned. And so... I do not know if it was from a Biology class
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permeability of the cell membrane. Introduction Located within the vacuole of beetroot cells is a red pigment call Betalains. Typically these pigments are contained within the cell vacuole by the tonoplast (vacuole membrane)‚ however When beetroot is heated these red pigments escape the vacuole. This experiment aims to explore the effect of temperature on the permeability of the cell membranes (i.e. Tonoplast). ‘The cell surface membrane is the plasma membrane that surrounds cells and forms the
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