Investigating Effects of duration of heating on permeability of beetroot cell membrane Introduction: Cell membranes contain many different types of molecules which have different roles in the overall structure of the membrane. Phospholipids form a bilayer‚ which is the basic structure of the membrane. Their non-polar tails form a barrier to most water soluble substances. Membrane proteins serves as channels for transport of metabolites‚ some act as enzymes or carriers‚ while some are receptors
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BIOLOGY PLAN AND DESIGN LAB Date: / / Syllabus Topic: Hypothesis: A glass of milk lasts longer in cold temperatures. Aim: To determine a better range of temperature for storing a glass of milk. Apparatus and Materials: • 2-100cm3 beakers • 2-500cm3 beakers • Milk • Ice • Hot water • Marker Method: 1. Obtain 2 clean 100cm3 beakers and 2 clean 500cm3 beakers. 2. Add 50cm3 of milk to each 100cm3 beaker. 3. Label the 100cm3 beakers‚ A and B. 4. Label the 500cm3
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AP Biology August 23‚ 2012 Egg Osmosis Lab Definition of osmosis: The diffusion of water across a selectively permeable membrane from high to low concentrations Hypothesis: If I place an egg in vinegar‚ then the outer layer of the egg is going to become slimy and look like rubber. It will also become larger and bubbles will form on and around the egg. Hypothesis: If I place an egg in corn syrup‚ then the egg will become small and the outer layer will not look like rubber any longer. Day one:
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Lab 2 Part 1: 10 points Learning Objectives and Outcomes Analyze a mixed-version Microsoft Windows environment and identify the issues described in Microsoft Security Advisories. Assignment Requirements You are reviewing the security status for a small Microsoft workgroup LAN. The workgroup contains many distinct separations in the network as determined by group memberships. The network consists of computers working on a variety of client platforms‚ such as Windows XP‚ Windows Vista‚ and Windows
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Name: Lab 201: Electric Field by Point Charges Section: 121A-H02 Date: February 8‚ 2012 Objective: To compute electric field and corresponding field lines caused by point charges using MATLAB. Theoretical Background: -electrons are negative‚ protons are positive -magnitude of force between A and B is: ‚ is 8.98755E9. -electric field is the region around a charged object -strength of electric field: = -electric field lines are used to visually show the field Procedure: Our
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Lab 2 – Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell‚ Color‚ Etc.) Beaker Observations 1 This beaker has water only‚ clear with no smell 2 I mixed oil in the water‚ the oil then started to settle at the top of the water. (oil is not a soluble) 3 Beaker contained vinegar and water‚ the water got a little cloudy and the vinegar smell is very strong. 4 The water and laundry detergent mix had a soapy look to it‚ water also
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Kristen Jones Section: Lab Report 5: Lymphatic System – Lab Manual Pages 103-112 Relevant Websites to Help You with This Lab – Be sure to review these Websites before and during the completion of this Lab. • Antigen/Antibody Test Results • Human Anatomy Online : The Lymphatic System • Immune Response Animation • Lymph Node Animation Review Your Lab Summary: What were the most significant 2 or 3 concepts you learned while doing this Lab? Exercise 1: Microscopic Anatomy
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Class: Environmental systems and societies Teacher: David. A Student name: Krutarth Mehta Date: 13/3 Relevant to: 2.5.2. Describe photosynthesis in terms of inputs‚ outputs and energy transformations. Criteria to be assessed: PL‚ DCP‚ DEC. Background: Photosynthesis is the reaction carried out by green plants to produce a supply of food. The reactions occur in the chloroplasts and require light energy. 6CO2 + 6H2O C6H12O6 + 6O2 In aquatic plants
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1. Pour 2 cups of water in the pot add 1 tablespoon of sugar then stir it up until all sugar is dissolved. 2. Turn on the stove‚ set the stove to it’s highest setting‚ place the pot on and time it with a stopwatch. Record the time and temperature of the solution as soon as it begins to boil. Record the data on your table. 3. Rinse pot vigorously to remove impurities‚ and allow the stovetop to cool. 4. Pour 2 cups of water in the pot add 1 tablespoon of salt and stir. Repeat steps 2 and 3. 5
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Aim: To investigate the effect of skin sensitivity in response to cold temperature in different parts of the body by timing the maximum amount of time in which ice-pack can be held to that area. Hypothesis: If the layer of skin is relatively thin‚ the nerve response to cold will be the fastest‚ increasing the skin’s sensitivity. This therefore means that the fastest responses to cold will be in the face‚ and specifically the nose. The skin consists of 3 main layers; the epidermis‚ dermis and
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