Osmosis Lab Report

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Title: Effect of Temperature on rate of Osmosis
Submitted By: Abdulkarim Kamal
Date Submitted: October 19th 2015
Subject: Biology HL
Teacher: Mr. Nick

This is an investigation to determine the relation between temperature of a solution (sucrose) and the rate of osmosis
Scientific Context:
Osmosis is defined a passive transport process in which a fluid diffuses across a semi-permeable membrane, from an area of high solute concentration to an area of low solute concentration and vice-versa. There are various factors that could potentially influence the rate of osmosis; these factors include volume, concentration, and temperature. If all external factors that may interfere with rate of osmosis are controlled, the results will show equal amounts of fluid on both sides of the barrier (membrane); this is known as an “isotonic” state. For this lab I will be using water and sucrose to demonstrate the rate of osmosis.
In this lab I will be exploring how temperature impacts the rate of osmosis by placing pieces of potato of equal size in solutions of different temperatures and observing the change in mass of potato after a given period of time. The change in mass will indicate the rate of osmosis.
In reference to a study conducted by Irfan Nadiadi and Sarah Mugharbil (2007), the end results of their experiment showed a positive correlation between the rates of osmosis; as the temperature of solution increased, the rate of osmosis increased. By definition

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