OSMOSIS Han Cheng Water passes through aquaporins in cell membranes from an area of high water concentration (low solute concentration) to an area of low water concentration (high solute concentration). This process is called osmosis. It requires no cellular energy to be used‚ and occurs due to the random‚ continuous motion of all molecules. If a cell is placed in an environment in which the concentration of water is less than in the cell (hypertonic)‚ water will flow from the cytoplasm and/or
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Mitosis and meiosis are both important biological processes that happen within eukaryotic cells. These two processes are slightly different from one another‚ but have a lot of similarities. Before each of these processes can be performed‚ the cell first has to go through interphase. Interphase is considered the primer for mitosis or meiosis and consists of: G1‚ S‚ and G2 phases. These phases prepare the cell for either mitosis or meiosis by causing the cell to grow‚ copy the DNA‚ and copy the cell’s
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Mitosis is the process in which a cell breaks apart its chromosome to eventually produce two identical daughter cells. The cell spends 10% of its time in mitosis. The cell goes through four stages in order to complete this task. The stages are Prophase‚ Metaphase‚ Anaphase and Telophase. Mitosis only occurs in eukaryotic cells and the process is different for different species. Mitosis is fast and very complex. The first phase is Prophase. In prophase‚ the chromosomes the chromosomes start to
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EXTRACTION OF DNA FROM ONIONS ABSTRACT The purpose of the experiment was to experience firsthand the isolation of DNA form a plant tissue without destroying its structure and sequence. A white onion was used for the experiment. After several processes‚ DNA isolate was the visible result. Different chemical tests were performed on the DNA isolate‚ namely: Dische Test‚ Murexide Test‚ Wheeler-Johnson test and Test for Phosphate. Visible results were then noted. INTRODUCTION DNA (deoxyribonucleic
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The cell is the basic unit of all life. All living things-- tigers‚ trees‚ elephants‚ and men-- are made up of cells. A cell is alive-- as alive as you are. It breathes‚ takes in food‚ and gets rid of waste. It grows and reproduces‚ or creates one of its own kind. (Garrod 36) Most cells reproduce by dividing‚ so that there are two cells where there once was one. (Akkas 78) Every living thing is made up of one or more cells‚ and each of these cells was produced by an already existing cell. New cells
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How To Prepare Yourself For A Root Canal Are you about to go to the dentist for a root canal? This dental procedure is one that you want to be well prepared for before you show up to the dentist office. What you do before the root canal can definitely have an impact on how the procedure goes. Here are some tips for preparing for your root canal. Don’t Be Afraid To Ask Questions Getting a root canal may feel a bit nerve-wracking and cause you to avoid talking about the procedure before you have it
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Period 1 1/14/12 Mitosis Lab Write-Up Purpose: The purpose of this lab is to understand the phases of mitosis through a hands on experience and not just textbook information. The objective is to visually determine each phase through a microscope with a clear understanding of what is happening. With this knowledge and this visual a picture is to be drawn as descriptive as possible for each phase. Materials: The materials needed are; 1) Microscope 2) A slide containing plant cells 3) Blank paper
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There are two processes of cell division that are very tricky. They are mitosis and meiosis. Many people often get confused with the two about their functions. They both serve as mechanisms for cell division. However‚ quite significantly‚ they are very much different in fact and occur in different situations. Mitosis and meiosis take place in different places. This is one of the first major differences between the two. Mitosis takes place within somatic cells (cells that make up the body)‚ while
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products. In our consumer oriented society‚ the public’s gullibility is optimized by the marketing industry’s power. The Onion‚ a publication devoted to humor and satire‚ derides how products are marketed to consumers in order to illustrate the absurdity of marketing strategies. The Onion utilizes testimonials and clever diction to satirize the methods availed by marketers. The Onion presents personal testimonials to mock how marketers employ false claims from allegedly real customers to sell their
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This question bothers most of the students every time! In this regard‚ being a regular student and going regularly in class is essential‚ but it is also equally important to enjoy English activities outside theclassroom. The following are few tips that will definitely help you in improving your English proficiency and to reach the next level! You should join an English Conversation group: Check out for some local listings to locate English-speaking groups in your locality. You can start
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