The recipe for mitotic cell division is 1 replication + 1 nuclear division + cytokinesis (1 cytoplasmic division). The purpose of mitotic cell division‚ in animals‚ is the growth and repair of somatic cells. The cells must divide‚ so surface area to volume ratio is optimal. This allows for differentiation. Interphase occupies about 90% of the cell cycle. It includes all cell activity between mitotic divisions during which the cell is preparing for division. These activities include
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December 8‚ 2013 Soil Analysis Lab Report Intro: Soil is produced over hundreds of years through the weathering of rocks and the decomposition of organic material. Soil contains nutrients that are taken from decomposed animals and plants which turn to detritus. Nutrients such as nitrogen are added to the soil in these ways by organisms such as nitrogen fixing bacteria. Soil is important because it is the fuel to the plants that we need in order to survive and for all species to survive. Soil
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Ahmad Shrab . Introduction This lab is purposed to familiarize basic equipment and techniques used in the study of microorganisms. In addition‚ learn some basic techniques used in identifying prokaryotes and make and view microscope slides of some common prokaryotes. In this lab ‚ I worked two experiments ‚ the first one is cultivation bacteria "colony "‚ and When microorganisms are cultivated
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AP Biology Lab: Catalase (Enzymes) Abstract In this laboratory exercise‚ studies of enzyme catalase‚ which accelerates the breakdown of hydrogen peroxide into water and oxygen. The purpose was to isolate catalase from starch and measure the rate of activity under different conditions. The laboratory was also conducted in association with a second laboratory that measured the effects of an inhibitor on the enzymes. Changes in temperature and pH along with Substrate Concentration and Enzyme
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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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substances in the atmosphere‚ such as water and oxygen‚ to form acid rain. While rain water has a pH of 5.6‚ acid rain has a pH of 5 or less‚ which is acidic enough to harm plant life. Due to the reactivity of acid rain‚ the cell processes of plants are disrupted‚ and the cells die or become unable to function properly. Although this greatly damages ecosystems‚ this environmental issue brings concern to society. Today‚ with our growing population of more than 7 billion‚ humans have become hugely dependant
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The purpose of this lab is to measure urinary glucose (a known and unknown sample) using two quantitative tests: colorimetric strip test and o-toluidine test. Urinary glucose is the main focus for this lab due to its involvement with diabetes‚ a disease defined by the abnormal regulation of insulin. The most effective method for monitoring glucose is through blood glucose compared to urinary glucose. It has been discovered that urinary glucose is not a good measure of changes in blood glucose because:
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highly concentrated to another area in which its concentration is lower. Cells contain fluids and are surrounded by fluids; in order for a cell to function it is required to be in a balanced state. The progress in which a cell is in its balanced state is called equilibrium. Diffusion is a functioning way for cells to reach their equilibrium. Equilibrium is reached by controlling what enters and exits the cell through a cell membrane that selectively filters molecules by slowing down their movement
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Mustaqim Ahmed Period 4 September 18‚ 2013 Analysis of Food Dyes in Beverages Purpose: To determine the concentration of dye in a sports drink using spectroscopy and graphical analysis. We will be using beers law to find the unknown concentration of dye in a sports drink. Materials: Beakers‚ 50-mL‚ 2-3 ; Test tubes (13 x 100)mm 3-8 ; FD&C Blue 1 stock solution‚ 50-mL ; Lens tissues ; Pipets‚ serological‚ 10-mL ; Sample of consumer sports drink‚ 10-mL ; Spectrophotometer ; Test tube rack Procedure:
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When one wakes up in the morning with bad breath‚ do they rinse with mouthwash and say "it’s never been fresher?" The Onion is a website dedicated to writing about controversial topics with a twist of humor. One article in particular‚ "Girl Moved to Tears By ’Of Mice and Men’ Cliff Notes‚" preaches out about losing the meaning through all the shortcuts that younger generations seek. The youthful Grace Weaver was gripped by the retelling of the George Steinbeck classic‚ feeling this emotional connection
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