...The purpose of this experiment was to demonstrate how diffusion and osmosis moves across a dialysis membrane. The sub-purpose was to determine if the sucrose solution, that was in dialysis tubing would leak into the distilled water. The hypothesis states that if a sucrose solution, in dialysis tubing, is placed into a beaker filled with distilled water the net movement of sucrose will be into or out of the dialysis bag. The null hypothesis states that if the sucrose solution in a dialysis bags mass may change after taking it out of the water each time to be weighted between each 15-minute increment 5 different times. After 15, 30, 45 and 60 minutes it can be concluded that weighing the sucrose solution in the dialysis bag increased in weight after each increment. Keywords: Diffusion, Osmosis, Dialysis bag, Sucrose solution, Distilled water Introduction...
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...Sonora Schueneman Dr. Kemp- Hailee Nerber Bio 111- 551 19 September 2017 Osmosis and Diffusion Across a Plasma Membrane-Lab 2 Week two in the lab consisted observing a constructed experiment involving osmosis and diffusion across a semi-permeable membrane. This allowed myself to formulate a hypothesis stating, the four pipets of cooked starch and amylase will diffuse through their dialysis bag into the beaker containing 2/3 water and four pipets of Lugol’s solution. Thus being stated, the null hypothesis would be, the four pipets of cooked starch and amylase will not diffuse through their dialysis bag into the beaker containing 2/3 water and four pipets of Lugol’s solution. In order to test our hypothesis, I set up a control beaker (Beaker...
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...Kristina Eskola BL 1020 L01 Diffusion and Osmosis Lab Report (Dialysis) Introduction: Dialysis Tubing is a membrane made of regenerated cellulose fibers formed into a flat tube. If two solutions containing dissolved substances of different molecular weights are separated by this membrane, some substances may readily pass through the pores of the membrane, but others may be excluded. We will be investigating the selective permeability of the tubing to reduce sugar, glucose, starch, and iodine potassium iodide. We will test this by placing a solution of glucose and starch into a dialysis tubing bag and then place this bag into a solution of iodine potassium iodide (I2KI). Prediction: The I2KI solution will turn blue when adding Benedict’s reagent. Hypothesis: The solution of water and I2KI will be the most permeable because they will mix and react with Benedict’s reagent and the heat so the cell membrane only allows certain molecules to enter and leave the cell Materials and Methods: In the experiment we will be using two tests. In the first test, we will be using I2KI to test for the presence of starch. When I2KI is added to an unknown solution, the solution will turn purple or black if starch is present. If there is no starch in the solution, it will remain pale yellow. In the second test we will be using Benedict’s test for reducing sugar. When Benedict’s reagent is added to an unknown solution and the solution is heated, it will turn green, orange or orange-red...
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...Lab Report on Osmosis and Diffusion Biology 1, Period 3 March 15, 2010 Lab Team: Jason Perez, Kicia Long, Chris McLemore Purpose: The purpose of this lab is to observe the acts of passive transport: diffusion and osmosis in a model membrane system. The experiment will show how molecules in solution move from areas of higher concentration to areas of lower concentration. The model membrane is dialysis tubing. Materials Used 2.5 cm dialysis tubing 15% glucose solution glucose test strip 1% starch solution distilled water Lugol’s iodine solution Procedure: Each member of the lab group will complete the procedures independently 1. Obtain a 30 cm piece of 2.5-cm dialysis tubing that has been soaking in water. Tie off one end of the tubing to form a bag. To open the other end of the bag, rub the end between your fingers until the edges separate. 2. Place 15 mL of the 15% glucose/1% starch solution in the bag. Tie off the other end of the bag, leaving sufficient space for the expansion of the contents in the bag. Record the color of the solution and weight of the bag in a data table. 3. Test the 15% glucose/1% starch solution for the presence of glucose using a test strip. Record the results in the data table. 4. Fill a 250 mL beaker or cup two-thirds full with distilled water. Add approximately 4 mL of Lugol's solution to the distilled water and record the color of the solution in data table. Test this solution...
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...Laboratory Exercise Osmosis and Diffusion “Osmosis and the Incredible, very Inedible Egg” **This is a fun thing to have your kids or significant other help with. Please note that this experiment takes several days to complete, so don't wait until the last minute to start!** I. Background: Osmosis is the diffusion of water molecules through a semi-permeable membrane. This is how water gets into and out of our cells. In this lab we will investigate the effects of different solutions on the water content of an egg. An egg will serve as our model of a cell. A. Remember, when comparing 2 solutions, the one with the greatest amount of stuff dissolved in it is called hypertonic while the one with the lesser amount of stuff dissolved in it is called hypotonic. Please get these terms straight in your mind before you start the experiment. B. Therefore, hypertonic solutions have less percentage of water in them than hypotonic solutions. Water, like everything else, moves from a greater concentration of itself to a lesser concentration of itself. C. In this experiment you will observe the movement of water into and out of an egg. To do this we will remove the minerals from the egg shell leaving only a membrane that is permeable to water. II. Supplies needed: 3 eggs 4 drinking glasses or clear containers Vinegar (about 2 cups) Foil or plastic wrap White Karo syrup (or any brand like it) Distilled water (actually...
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...Practice your vocab with your created sentences. | American Sign Language 1 CP Practice vocab with your created sentences. | No items found | Bible 9-10 (Bible 9-10-P5) | No items found | Bible 9-10 Read I Kings by Friday and get a parent signature..... Write a 3 part essay on I Kings and turn it in on Friday.,,,,,,,,, Bible Memory due on Thursday - I Kings 9:4-7b | No items found | Bible 9-10 Bible Memory due on Thursday - I Kings 9:4-7b | No items found | No items found | No items found | Earth/Physical Science CP (EARTH-PHYS-P2) | No items found | No items found | Earth/Physical Science CP will be updated daily by 3:30pm Lab Report on Diffusion and Osmosis typed Due Thursday 1/19 (if not turned in at beginning of class it is a zero - no exceptions - No lates will be excepted) | Earth/Physical Science CP Lab Report on Diffusion and Osmosis typed Due Thursday 1/19 (if not turned in at beginning of class it is a zero - no exceptions - No lates will be excepted) | Earth/Physical Science CP will be updated daily by 3:30pm | Earth/Physical Science CP will be updated daily by 3:30pm | No items found | English 9 H (ENG_09 H-P4) | No items found | No items found | No items found | English 9 H Study spelling words (unit 8) daily. Literature quiz (unit 7) on Thursday....
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...This is to be written about a lab you've already done in the course. See the instructions for possibilities on the lab topic. It is to be at least 3 pages, and not more than 5 pages double spaced. Below are listed the sections you should have in the paper. You DO need to separate sections and label them each separately! Don't run them all together or else points will be deducted. Title: 10 words or less. Introduction: This is to be background information. Here you give the hypothesis and talk about what other experiments have been done on this subject. This is where you can cite some outside sources. What is the purpose of the experiment? Methods: What equipment was used to do the experiment? What was being measured? Results: Here is where your graphs, figures, tables etc. go. Record the data here. Conclusion/Discussion: Here you can describe the data. What does it mean? Did your experiment support the hypothesis? Come to a conclusion. Here you also cite outside sources as you explain the results. References: Here is where you cite the sources used in your paper. This lab report should be 3 to 5 double spaced pages. Its format should follow that given in Lab Module 1 and illustrated in the lab simulation concerning Scientific Reports assigned at the beginning of the semester. That is, the report should be divided into 4 sections: Introduction, Methods, Results, and Discussion or Conclusion. Consult the Scientific Reports lab simulation concerning the content...
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...Leaf Lab Report Background Cells and organisms must exchange matter with the environment to grow, reproduce, and maintain organization, and the availability of resources influences response and activities. For example, water and macronutrients are used to synthesize new molecules, and, in plants, water is essential for photosynthesis. Organisms have evolved various mechanisms for accumulating sufficient quantities of water, ions, and other nutrients and for keeping them properly balanced to maintain homeostasis. Plants absorb and transport water, nutrients, and ions from the surrounding soil via osmosis, diffusion, and active transport. Once water and dissolved nutrients have entered the root xylem, they are transported upward to the stems and leaves as part of the process of transpiration, with a subsequent loss of water due to evaporation from the leaf surface. Too much water loss can be detrimental to plants; they can wilt and die. The transport of water upward from roots to shoots in the xylem is governed by differences in water (or osmotic) potential, with water molecules moving from an area of high potential (higher free energy , more water)to an area of low water potential (lower free energy, less water). The movement of the water through a plant is facilitated by osmosis, root pressure, and the physical and chemical properties of water. Transpiration creates a lower osmotic potential in the leaf, and TACT (transpiration, adhesion, cohesion, and tension) mechanism...
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...SI103L Introduction to Marine Biology LAB Syllabus Guam Community College School of Technology and Student Services Science Department Fall 2015 Instructor : Ronaldo M. Paulino, Instructor, M.Sc., Dr.PH Contacts: email: ronaldo.paulino@guamcc.edu Location and time: Section 03 Rm. 3111 and Section 04 Rm. 3115 (Allied Health Building) Section 03 Friday from 0900am-1200pm; Section 04 Saturday from 0900am -1200pm, OR, field trips as scheduled. Office hours: MW 1230pm-0200pm; TTH 0130pm-0230pm or by appointment. Allied Health Bldg. Rm. 3130 Phone#: (671) 735-5600 Course Description This course is the laboratory co-requisite for SI103 Introduction to Marine Biology. Laboratory sessions and field trips reinforce and extend basic marine biology concepts, identification of marine organisms, and anthropogenic effects on the marine environment. Student Learning Outcomes – Course Level Upon successful completion of this course, students will be able to: 1. Describe key chemical, biological, geological, and ecological processes. 2. Identify and classify common marine organisms. 3. Explain anthropogenic factors that affect the marine environment and organisms therein. Teaching Methodologies Guided by the instructor, Inquiry-based labs and field trips will reinforce lecture material. Course Requirements * You are required to access the course website. Here, you will receive study guides, assignments and announcements. It is...
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...Lab Manual Introductory Biology (Version 1.4) © 2013 eScience Labs, LLC All rights reserved www.esciencelabs.com • 888.375.5487 2 Table of Contents: Introduc on: Lab 1: Lab 2: Lab 3: Lab 4: The Scien fic Method Wri ng a Lab Report Data Measurement Introduc on to the Microscope Biological Processes: Lab 5: Lab 6: Lab 7: Lab 8: Lab 9: The Chemistry of Life Diffusion Osmosis Respira on Enzymes The Cell: Lab 10: Lab 11: Lab 12: Lab 13: Lab 14: Lab 15: Cell Structure & Func on Mitosis Meiosis DNA & RNA Mendelian Gene cs Popula on Gene cs 3 4 Lab Safety Always follow the instruc ons in your laboratory manual and these general rules: eScience Labs, LLC. designs every kit with safety as our top priority. Nonetheless, these are science kits and contain items which must be handled with care. Safety in the laboratory always comes first! Lab Prepara on • • Please thoroughly read the lab exercise before star ng! If you have any doubt as to what you are supposed to be doing and how to do it safely, please STOP and then: Double-check the manual instruc ons. Check www.esciencelabs.com for updates and ps. Contact us for technical support by phone at 1-888-ESL-Kits (1-888-375-5487) or by email at Help@esciencelabs.com. • Read and understand all labels on chemicals. If you have any ques ons or concerns, refer to the Material Safely Data Sheets (MSDS) available at www.esciencelabs.com. The MSDS lists the dangers, storage requirements, exposure treatment...
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...Hrm Simulation Final Report HRM Simulation Final Report Absenteeism Our goal for absenteeism was to decrease it from 498 to 120 by quarter 8 by maintaining high morale and offering health... Premium Industrial Placement Report In Heritage Hotel 4. Conclusion Personal reflection 9 5. References 10,11 Introduction Heritage Hotel Auckland opened in 1998 and 1999 belongs to the Dynasty... Premium Report : Introduction Report : Introduction Winnie Wibowo To report is not only to tell someone about something but also to inform something to someone who intends to know. We do the... Premium General Format Of Hrm/Hrs Ojt Narrative Report Font Size: 14 Submitted by: < Name of Student Trainee > Line Space: 5 Submitted to: < Name of OJT Adviser > Line Space: 5 < Date... Premium Essay On Report On Seagull Hotel Ltd. College Higher diploma in hotel management Professional housekeeping HMT 102H FALL2011 Instructor name: Mr. Pntelis Hadjiyerou Students name: karki Anwesh... Premium Consulting Report Of Solberri Hotel with limited knowledge of the hotel industry and relevant skills. Besides, all short-term employees only receive two days introduction training which is apparently... Premium Ojt Report 5 Duties of a Front Office Agent...8 Hotel Policies....9 Job Description .11 2. Personal notes of the student My Job assignment and experience...13 Values... Premium Ojt Narrative Essay For Hrm Student My Community Liceo de Cagayan mission and vision and Core values have a big...
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...Osmosis Experiment Diana Arrowood Grand Canyon University BIO-100L Biology Concepts September 16, 2011 Osmosis Experiment Directions Use the information below to complete the Osmosis Experiment. Materials 1 fresh baking potato Water Salt Four small containers (i.e., drinking cups or clear glasses) A metric ruler Methods and Procedure 1) Place 1 cup (236 ml) of water in each of the 4 containers. In 2 of the containers, add 1 tablespoon (14.8 ml) of table salt and mix well until dissolved. Label which containers have salt. Cut a fresh baking potato into 5 mm slices. Cut four rectangles 2.5 cm x 1 cm from the slices as close to the same size as possible. Measure the length and width of each rectangle in metric units and place one in each of the containers, keeping track of which measured slice went in which container. There will be two slices (duplicates) for fresh water and two for salt water. After 1 hour, remove and measure the length and width of each piece of potato and return it to the appropriate container. Note any physical changes. After 24 hours, remove and measure the length and width of each piece of potato. Note any physical changes in the potatoes and describe their appearance. Written Lab Report Introduction 1) Address the following questions: A) Define osmosis. Osmosis is the movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, aiming to equalize the solute concentrations...
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...Aims and Objectives Aims On the completion of the seminar students gain the knowledge regarding hemodialysis and peritoneal dialysis and will utilize this knowledge with a positive attitude. Specific Objectives The group will able to; * Define dialysis * Describe the history of dialysis * Explain the principles of dialysis * Enumerate the indication of dialysis * Explain details about hemodialysis * Describe details about peritoneal dialysis * List down the Psychosocial Issues In ESRD Patients * Dietary Management Dialysis Patient * Nursing Responsibilities Introduction The introduction of dialysis as a lifesaving treatment for kidney failure was not the result for any large scale research programme, rather it emerged from the activities of a new pioneering individuals who were able to utilize ideas, materials, and methods from a range of developing technologies. Hemodialysis as a routine treatment for renal failure was introduced in the late 1970s. The recognition for the need for immunosuppression in the transplantation and the lack of availability of transplant in the 1960s enabled it to become the preferred treatment for many patients. Definition Dialysis is the movement of fluid and molecules across a semipermeable membrane from one compartment to another. Clinically dialysis is a technique in which substances move from the blood through a semipermeable membrane and in to a dialysis solution called dialysate. Historical Evolution...
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...MicroBiology- MLT1 LabPaq / Published by: Hands-On Labs, Inc. sales@labpaq.com / www.LabPaq.com / Toll Free 866.206.0773 A Laboratory Manual of Small-Scale Experiments for the Independent Study of Microbiology 50-0222-MB-01 LabPaq® is a registered trademark of Hands-On Labs, Inc. (HOL). The LabPaq referenced in this manual is produced by Hands-On Labs, Inc. which holds and reserves all copyrights on the intellectual properties associated with the LabPaq’s unique design, assembly, and learning experiences. The laboratory manual included with a LabPaq is intended for the sole use by that LabPaq’s original purchaser and may not be reused without a LabPaq or by others without the specific written consent of HOL. No portion of any LabPaq manual’s materials may be reproduced, transmitted or distributed to others in any manner, nor may be downloaded to any public or privately shared systems or servers without the express written consent of HOL. No changes may be made in any LabPaq materials without the express written consent of HOL. HOL has invested years of research and development into these materials, reserves all rights related to them, and retains the right to impose substantial penalties for any misuse. Published by: Hands-On Labs, Inc. 3880 S. Windermere St. Englewood, CO 80110 Phone: Denver Area: 303-679-6252 Toll-free, Long-distance: 866-206-0773 www.LabPaq.com E-mail: info@LabPaq.com Printed...
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...Abstract: Renal failure can take its toll on those affected patient and family. At the end of 2009, there were 572,569 U.S. resident under treat for End-stage Renal Disease (ESRD). Among the U.S resident with ESRD, there were 150.5 deaths per 1,000 patient totaling 88,620 deaths in all patients undergoing ESRD treatment. With so many experiencing the disease, understanding how it occurs and progresses might prove useful. Table of Contents Introduction…………………………………………..…………………………………..4 Mechanisms of Fluid Regulation………………………………………..7 Discussion……………………………………………………………………………….8 Etiology/Cause……………………………………….………….............8 Clinical Manifestations…………………………………………………11 Labs and Diagnostic Tests……………….……………………………..11 Treatment……………………………………………………………………………......13 Pharmacological…………………………………………………..……15 Nutritional………………………………………………..…………….15 Dialysis…………………………………………………………………16 Introduction The kidneys are bean shaped organs that are approximately 12cm long, 6cm wide and 2.5 cm thick. They are highly vascular, receiving 25% of cardiac output. The kidneys efficiently separate the excess of fluids, electrolytes, and metabolic by-products to produce urine. The kidneys’ location is described as retroperitoneal which means they are located outside and posterior to the abdominal cavity but lateral and anterior to the lumbar spine. Both kidneys are protected by the posterior rib cage; with the right kidney slightly lower then the left because of liver...
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