Biological Membrane Study: HCl‚ NaOH‚ SDS Objective and Hypothesis: The objective of this lab is to determine the effects of SDS‚ HCl‚ and NaOH on red cabbage cell membrane. Prior knowledge can tell us that the red cabbage is a red-purple color due to a pigment called anthocyanin. This is what we will be testing in the experiment. We also know that HCl is a strong acid (very low pH) and that NaOH is a strong base (very high pH). From information learned in this course (lecture/lab) we can assume
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REVIEW SHEET EXERCISE 1 Cell Transport Mechanisms and Permeability NAME: LAB TIME/DATE: Simple Diffusion 1. The following refer to Activity 1: Simulating Dialysis (Simple Diffusion). Which solute(s) were able to pass through the 20 MWCO membrane? None of the solutes were able to pass through the 20 MWCO membrane. A possible reason to why none of the of these solutes were able to pass through was because the solutes could have been too big to be transported. According to your results
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Investigate factors affecting cell membrane permeability in beetroot. Research Question: How does variation in temperature affect the permeability of cell membranes? Background Information: In this investigation I will want to identify how variations in temperature effect the permeability through the use of a beetroot. I predict that as the temperature of the water increases so will the dispersion of the pigment. Independent Variable: The temperature of water will be increased in increments of 10oC
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Answers about “Four Products: Predicting Diffusion (2008)” Read and consider the article. Answer the following questions related to the article. 1. Which of the four products described are you most optimistic about in terms of its likely success? Why? a. Synthetic race track (Polytrack) is my choice of products most likely to succeed. Gambling/odds making/ betting are a big industry throughout the world. The benefits of a softer race track that will cut down on injuries to
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Classification of Body Membranes Laszlo Vass‚ Ed.D. Version 42-0010-00-01 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 file which can be sent
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Federico Currò Msc International Marketing ID. 12722219 Innovation diffusion‚ social change‚ and implications to international marketers. The history of social evolution demonstrates how the diffusion of innovation has often resulted in significant social change. However‚ the way in which innovation affects society is complex and controversial. This essay aims to analyze the phenomenon in the contemporary era‚ applying the analysis to an international
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Diffusion of Innovations Theory Categories of adopters: According to the adoption curve by Everett Rogers‚ the individuals in a given social system can fall in any of the following five categories of adopters which are namely innovators‚ early adopters‚ early majority‚ late majority‚ and laggards. Innovators: Innovators who are often experienced‚ wealthier and/or highly educated people are brave and creative. According to Rogers‚ innovators accounts for about 2.5% of the population. They are attracted
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Most major countries have been subject to cultural diffusion‚ and Japan is no exception. During the 7th Century and onward‚ many countries had an effect on Japan‚ and the country with the most influence was undoubtedly China. However‚ Japan gradually developed these influences into their own styles‚ whether in art‚ government‚ language‚ or architecture. While Japanese art was heavily influenced by China‚ it became more unique as time went on‚ and this can be shown through painting‚ writing and literature
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able to receive the nutrient in the 1 cm cell and almost all of them in the 0.5 cm cell. This is caused due to the larger surface area to volume ratio as the cell size depends on the efficiency of the material to flow in and out through diffusion. Through diffusion‚ the organelles in the cell receive all the vitally needed nutrients to survive. If there is a big surface area to volume ratio such as 1:2‚ then this process will be delayed due to the sodium hydroxide having to cover a larger distance
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Problem Question: * What effect does temperature have on the rate of Diffusion? Hypothesis: If we put the antacid in hot water‚ then it will dissolve faster than in cold water or room temperature water. Material List: * One thermometer * 3 beakers (of the same size) * 3 antacid tablets * Cup of ice * Hot plate * Paper towels * Water Procedures: Step 1: Gather materials Step 2: Label the beaker #1‚ #2‚ and #3 Step 3: Fill each beaker with the same amount of
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