Suggested answers to Practical Workbook for SBA Ch 1 Introducing biology Practical 1.1 Design an investigation of the effect of fresh pineapple on the setting of jelly Propose a hypothesis (p. 1-2) It is the fresh pineapple that causes the jelly to remain in liquid form. Design and perform an experiment (p. 1-2) 1 (Answer varies with Ss. The recommended quantity of jelly powder and water is stated on the packet of the jelly powder. Jelly will not set if it is too dilute.)
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the plasma membrane‚ and to indicate the driving force for each. This may also be applied to the study of transport mechanisms in living me Premium 2635 Words 11 Pages Osmosis and Diffusion Via Dialysis Tube Open-ended Lab: Osmosis and Diffusion in Dialysis Tubing Name(s): Background: It is very difficult to measure or see osmosis actually occurring in cells because of the small size of most cells. However‚ if an artificial membrane that acts in some ways like a real plasma
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water starch and glucose. During the lab‚ we created diffusion in the membrane when the molecules were heated they were diffused by spreading farther and farther apart from each other. Molecules are always moving Materials and Methods • Dialysis tubing • Starch solution • Un-waxed dental floss • Paper towels • Glucose indicator solution • Pipettes • Test tube rack • Safety
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we tested osmosis in a nonliving system. My prediction for this experiment is that all five of the bag will change colors after being immersed in solution. To test my prediction we tested five dialysis bag in five different solutions. Materials: 30 presoaked 15 cm lengths of 44mm flat diameter dialysis tubing per lab Twine 1% starch
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Name: Date: Case study 76: Endocrine INSTRUCTIONS: All questions apply to this case study. Your responses should be brief and to the point. When asked to provide several answers‚ list them in order of priority or significance. Do notassume information that is not provided. Please print or write clearly. If your response is not legible‚ it will be marked as is and you will need to rewrite it. Scenario Y.L.‚ a 34-year-old Asian woman‚ comes to the clinic with complaints of chronic fatigue
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Lab Manual Introductory Biology (Version 1.4) © 2010 eScience Labs‚ LLC All rights reserved www.esciencelabs.com • 888.375.5487 2 Table of Contents: Introduction: Lab 1: The Scientific Method Lab 2: Writing a Lab Report Lab 3: Data Measurement Lab 4: Introduction to the Microscope Biological Processes: Lab 5: The Chemistry of Life Lab 6: Diffusion Lab 7: Osmosis Lab 8: Respiration Lab 9: Enzymes
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If the temperature of the sucrose solution in the beaker increases‚ then the percent change from diffusion will increase as well. III. Materials and Procedures a. 4 250mL beakers 1 M sucrose 1 M glucose Dialysis tubing String Balance Thermometer Hot Plate Ice b. Fill 4 dialysis tubes 2/3 of the way with 1 M glucose solution. Fill 4 beakers with 100 mL of 1 M sucrose. Weigh all four bags before placing them into beakers. Record temperature of room temperature sucrose and place one bag
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how to live with one day-to-day‚ and how to care for a PICC line. What is a PICC Line? A PICC line stands for Peripherally Inserted Central Catheter (Treatments & Procedures‚ 2015). What this means is that a PICC line is tubing running into a vein that is in your arm. This tubing is called cannula; it is flexible‚ soft‚ small in diameter and thin. It may be uncomfortable when first inserted‚ but once it is in place‚ it should not be painful. That patient will just have to be careful with it to ensure
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Arianna Montoya Osmosis and Diffusion Lab Report Background Information: Diffusion involves the movement of solute particles across a selectively permeable membrane from higher to lower concentrations. A selectively permeable membrane allows only some thing to go through. Water and oxygen are examples of molecules that are able to go through the membrane
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achieve an isotonic state (Vodopich and Moore. 2011.) Materials and Methods To start the experiment 8 pieces of string were gathered; approximately 2 inches in length‚ sewing thread were used for this experiment. Four water soaked pieces of dialysis tubing that were 15 cm long were also used. A small beaker for bag A was filled with a solution of 25% sucrose‚ was labeled to keep separate from the other beaker. A larger beaker was used for bags B‚ C‚ and D. It was filled with a 1% solution of sucrose
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