In this lab we will look at how molecules move across the membrane of a cell . Osmosis is the movement of water across a cell membrane.In osmosis the cell membrane is selectively permeable‚which allows for the membrane to control what types of substances that passes through.Transportation can either be passive or active.Passive transport does not require the use of added energy where as active transport requires the cell to use energy. Diffusion is the simplest form of passive transport. Using
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Coulomb’s Law Purpose: The purpose of this lab was to demonstrate that the force between two stationary charges is directly proportional to the product of the charges and inversely to the square of the distance between them. Coulomb’s law tells us that the force between two charges depends (1) linearly on the strength of each charge‚ and (2) inversely on the square of the distance between them. Mathematically we would write this as . Procedures Part1 Begin by removing the right side
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Urinalysis Laszlo Vass‚ Ed.D. Version 42-0026-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable
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results 4. Repeat step 2 5. Place boiled 1mL of boiled potato into 50mL beaker of solution Data KMnO4(mL) | Time(seconds) | | 10s | 30s | 60s | 120s | 180s | 360s | A. Baseline | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | B. Final Reading | 7.5 | 7.5 | 8 | 8 | 8 | 7.5 | C. Initial Reading | 5 | 5 | 5 | 5 | 5 | 5 | D. Amount of KMnO4 Consumed | 2.5 | 2.5 | 3 | 3 | 3 | 2.5 | E. Amount of H2O2 Used | 1 | 1 | .5 | .5 | .5 | 1 | Baseline Calculation
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Homeostasis Lab: The Effects of Exercise on Homeostasis Lab Write Up Introduction: The purpose of this lab is to discover the effect that various levels of exercise have on specific body parameters such as heart rate‚ body temperature‚ perspiration level‚ body color‚ and breathing rate. Homeostasis will be monitored to calculate the change in such body parameters. To find this information the subject will exercise for a controlled periods of time. At each rest‚ the subject will be recorded upon
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Combustion Background For this science experiment‚ we will be looking at the differences in calorie count between a food label and and the amount we measure in a lab. For this lab‚ we will be experimentally measuring how many calories are in different types of food. Before we begin the lab however‚ we need to investigate the science behind it. Firstly‚ we need to figure out if this project is even possible. Luna Abdallah et al created an experiment making it possible. To measure the amount of calories
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BSC 2085C Anatomy and Physiology I Lab 1: Anatomical Orientation Directions There are three (3) activities in this lab. Please be sure to complete them all. For all questions‚ type your answers into the yellow box ____ (including your name above) it will expand as you write. Activity 1: Anatomical Orientation Go to the website: University of Michigan: Medical Gross Anatomy[->0] Choose the link to the Learning Module entitled Anatomical Orientation. Read the 9 pages and answer the
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Preparation of an Ester Acetylsalicylic Acid (Aspirin) OBJECTIVE: To become familiar with the techniques and principle of esterification. DISCUSSION: Aspirin is a drug widely used as an antipyretic agent (to reduce fever)‚ as an analgesic agent (to reduce pain)‚ and/or as an anti-inflammatory agent (to reduce redness‚ heat or swelling in tissues). Chemically‚ aspirin is an ester. Esters are the products of reaction of acids with alcohols‚ as shown in the following equation using
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Kya Wolf Prof. Ranta May/05/2014 Lab 6 My opinion about the code of silence is that it was in their blood to keep silent. In Southie they felt a sense of security and that was a feeling that you didn’t get in too many communities those days. For good or bad they always had that sense of neighborhood‚ they shared struggle‚ they shared identity. That’s something that most people don’t have or appreciate. Yet it was also a world that inspired fierce loyalty and a rock-solid sense
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the acid in lactate acid‚ it interfere with electrical signals in muscles and nerves‚ slows energy reactions‚ and impairs muscle contraction. The burn up we feel in intense exercise is the cause of hydrogen ion. During this experiment(Muscle fatigue lab) it will be seen that after a while of squeezing a small ball there won’t be the same amount of energy that was started with first and you will feel a burn in your arms which makes you feel hurt and don’t do a lot of squeezing; which is called the
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