Exercise 1: Cell Transport Mechanisms and Permeability: Activity 1: Simulating Dialysis (Simple Diffusion) Lab Report Pre-lab Quiz Results You have not completed the Pre-lab Quiz. 09/20/11 page 1 Experiment Results Predict Question: Predict Question 1: The molecular weight of urea is 60.07. Do you think urea will diffuse through the 20 MWCO membrane? Your answer : c. No‚ not at all. Predict Question 2: Recall that glucose is a monosaccharide‚ albumin is a protein with 607 amino acids‚ and
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Lab 8: Mitosis‚ Meiosis and the Cell Cycle . header Purpose: This activity is designed to familiarize you with the phases of mitosis and meiosis and compare these processes in a comparison chart. This activity will be three parts. For parts I and II‚ please scan your labeled work. Preparation: There is no preparation or materials needed for this activity. You will simply need access to a scanner to submit your work. Procedure Part 1: For this portion of the laboratory‚ please sketch a cell
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Resting membrane potentials Definition: Large nerve fibers when not transmitting nerve signals is about 90 millivolt. That is‚ the potential inside the fiber is 90 millivolts more negative than the potential in the extracellular fluid on the outside of the fiber. The Na+-k+ pump also causes large concentration gradients for sodium and potassium across the resting nerve membrane. These gradients are the following: Sodium ( outside): 142 mEq/L Sodium ( inside): 14 mEq/L Potassium ( outside):
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Name: Ranessa Dockery I.D #: 27100017 Course: Immunohematology Lab Instructor: Sala Randall Date: January 22‚ 2013 Lab #: 1 Title: Cell Washing Aim: To demonstrate quality assurance techniques in performing cell washing. Principle: Cell washing is a common procedure performed in the laboratory. This is a series of careful steps taken to wash red blood cells normally three times intermittently with centrifugation and decanting (Harmening 2012). The procedure serves to
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filter. The actively growing cell suspension was treated with elicitors and precursor indiviually on the day of inoculation. The effect of elicitors (ABA‚ SNP‚ SA‚ and MeJA) and precursor (Phenylalnine) on stimulation of anthocyanin in the cell suspension cultures of D. carota was studied at various concentrations viz. 10‚ 50‚ 100‚ 200 μM and phenylalanine viz. 0.5‚ 1 and 5 mM.The samples were collected at 0‚ 3‚ 6‚ 9‚ 12‚ 15 and 18 day‚ to determine the optimum concentration required for the elicitor
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Children‚ Cell Phones‚ and Possible Side Effects There are possible health risks that go along with allowing a child to use a cell phone. This subject has been debated for years. Many researchers and health care professionals have done studies and given their opinions about it. Although cell phone companies do not opening warn you when you purchase a cell phone‚ I take the advice of risk very seriously. Being a mom‚ I found the following information very helpful when deciding that a cell phone
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promote society’s values. Important social skills needed in the work force and everyday life are learned at school‚ such as sharing‚ compromise‚ and the importance of teamwork. As a student‚ I want to encourage and help children to reach their full potential. I want students to realize that they are all different‚ and understand that diversity is a good thing. I believe that there are different types of intelligence‚ and creativity is just as important as logic. Teachers’ behavior should reflect values
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Aim: In this investigation I will be measuring the effects of temperature on the membrane permeability of beetroot. I will be measuring the amount of anthocyanin that will diffuse out of the beetroot. The way in which I will measure the anthocyanin is to check the light absorbency of the solution using a colorimeter. The higher the reading on colorimeter the more anthocyanin present in the solution To find out the permeability of the beetroot membrane I will firstly cut out cylinders of beetroot
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This paper is about how the plant cells and solar cells are similar to each other as well as how they are different to one another. In addition this paper explains how the laws of thermodynamics apply to each of the plant and solar cells system. Plant Cells and Solar Cells Photosynthesis is the process of producing and releasing oxygen in the air. It needs sunlight‚ carbon dioxide and
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Galvanic Cells Investigation Equipment: - 2 x 150 ml beaker - sand paper - Voltmeter - Copper electrode - Copper Nitrate - M(1)‚ M(2)‚ M(3) - Electrolyte couples matching the previous metals - two cables connecting the electrodes with the voltmeter - Paper towel - Wash bottle - Sodium Chloride Method: 1. Clean the copper‚ M(1)‚ M(2) and M(3) before starting the experiment. Sand with a fine grade sand paper to take off the outside coating. 2. Add 100 ml of one matching electrolyte
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