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    Cells Lab Write Up

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    John Leone  Lab Partner(s) Ethan Davis & Ryan Hanna  Date: 12/10/14  Instructor: Dr. Chuckran  Period: H    Plants and Animal Cells    Abstract:  In this lab‚ you will find out how plant and animal cells are alike and how they are different.  The onion elodea cells were both plants‚ so they had a cell wall. The cheek cells were animal cells‚ so  they did not have a cell wall.  Eukaryotic cells contain structures called organelles that carry out life  processes. Eukaryotic cells can be classified by the types of organelles they contain

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    Evolution Lab Write-Up

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    Evolution Lab A. 1. a. The default value of 20 cm of rainfall is relatively low compared the range that the island may receive‚ which is anywhere between 0 cm to 100 cm. b. From an average of 20 cm of rainfall I would expect more hard seeds to be produced. 2. a. The beak size of 12 mm is relatively shallow compared to the available range from 10 mm to 30 mm. b. The shallow beak size of 12 mm is not suited for the hard seeds that are available because of the low rainfall of 20 cm.

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    Starch Lab Write Up

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    Starch is a type of Carbohydrate that’s made from thousands of glucose units. Simple sugars are the basic units that make up starch. Carbohydrates provide us with energy so that we can carry out our daily routines. Our body then digests it into glucose so we can have energy to do that. Saliva is a form of chemical digestion that is in the mouth. Amylase is an enzyme that catalysts the breakdown of starch into sugars. Amylase is present in human saliva‚ where it begins the chemical process of digestion

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    Density Lab Write Up

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    displacement‚ the volumes of the paper clip samples were measured and the masses were obtained by using an electronic balance. Each mass and volume was unique to their sample so by using their values‚ density was used to identify substances in the lab. After conducting the experiment‚ the results showed that there was a positive slope between the different paper clip samples’ masses and their volumes. It was concluded from this pattern that density is an extensive property. Introduction In science

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    Biology Lab Write Up

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    1P Paper Towel Absorbency Experiment Write-Up Purpose: The purpose of this experiment is to conduct a valid experiment‚ realize that the way I conduct an experiment influences the data‚ and I want to know which paper towel has the higher absorbency times. My hypothesis is that bounty will be the quicker picker upper Materials and Methods: As a class we chose that our control out of the brands provided (Bounty‚ Viva‚ Wal-Mart‚ and the School brand) would be the Schools brand of paper towel

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    Lab Write Up 1

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    and widespread in the environment. In this lab‚ we undertook to determine the differences in the agars being used and the different colony count observed. After taking four different samples of microbes from the environment and swabbed them in two different plates one with nutrient agar and the other with sabouaud dextrose agar. After the microbes had incubated for 48 hours no results were discovered from the swabs we had taken from the environment. This lab further investigates the different swabs

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    Enzyme Lab Write Up

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    Introduction Enzymes are proteins that are involved in all the chemical processes in living things. As they are made of proteins they are affected by pH and temperature. Enzymes are catalysts; they speed up chemical reactions without being changed themselves. Digestive enzymes speed up the breakdown of large food molecules into smaller ones so that the blood can absorb them. Enzymes turn a large starch molecule into thousands of tiny glucose molecules. Enzymes end in ’ase’. There are thousands of

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    combination will result in a unique ratio‚ thus allowing us to compare unknown samples and discover their identity. The Rf value is essentially the rate the dotted sample will move in accordance to the solvent rising up the chromatography strip via capillary action. As the solvent gets sucked up to the solvent front‚ the sample dissolved into the paper will “grab” onto the moving solvent. Polarity plays a huge role on the ratio‚ as it affects the substance’s ability to migrate with the solvent. A higher

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    Chemistry Lab Write-Up

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    varying temperatures are targeted towards being at 10ºC‚ 20ºC‚ 30ºC‚ 40ºC‚ and 50ºC. It is highly improbable that each trial for each of the 5 different temperatures will be the exact temperature that was targeted‚ so it’s just important that you end up having a temperature fairly close to the targeted temperatures so that the rates of reactions that you do receive are as correct as possible. The rates of reaction will be obtained using an apparatus that will guide the carbon dioxide gas being produced

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    Titration Lab Write Up

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    Abstract The purpose of this experiment is to determine the concentration of acetic acid in vinegar by using 0.1 M HCl and NaOH solution. By performing three titrations to determine the concentration of the base‚ the concentration of the acid was determined to be 0.600 M. It was possible to determine its concentration by standardizing the sodium hydroxide solution used for the first three titrations and by using phenolphthalein to indicate its equivalence point. In conclusion‚ although there were

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