Osmosis and Movement of solute

Save Paper

A detailed Summary of Osmosis and Movement of solute


In order to fully understand the movement of particles across a membrane, one must be knowledgeable of basic concepts concerning diffusion and osmosis. Diffusion can be defined as solutes moving an area having a high concentration to an area having a lower concentration. Diffusion is the outcome of the constant, random motion is the outcome of the constant, random motion of solutes. The Random Thermal Motion (RTM) theory states that particles are constantly taking on and giving off energy. Because osmotically active particles move randomly they move from higher to lower concentration. As concentration increases, the rate of this movement increases. Just as concentration decreases, the rate decreases. Temperature is also a factor that influences the movement of molecules. As temperature increases the rate increases and as temperature decreases the rate also decreases. When at equilibrium, the net movement of solutes no longer undergoes this movement but the random motion continues. A concentration gradient also plays a role in controlling diffusion. A concentration gradient can be described as the difference in concentration



Three dialysis bags were filled with molasses and then sealed off. The first of the three bags contained undiluted molasses. The second contained molasses cut by 100% water and the third contained molasses cut by 200% water. Four measurements were taken every 20 minutes. A percentage change of weight from initial weight was calculated.

In this experiment, I propose that it will show that a bag with a higher concentration of solutes will experience a higher increase in percentage change in weight at a higher rate.

ns between a solvent and a solute. Diffusion, along with osmosis, move down, a concentration gradient from higher to lower. Osmosis is the diffusion of water across a membrane. This membrane is relatively impermeable to a solute that forms a solution with the solvent, water. This type of movement also moves down a concentration gradient, from a higher water concentration which has fewer solute molecules, to a lower water concentration with more solute molecules. Water moves into a cell, for example, by osmosis when it is placed into a hypotonic solution because the solution usually has a higher concentration of water and fewer



Some common words found in the essay are:
Motion RTM, , concentration gradient, net movement, osmosis diffusion, lower concentration, contained molasses cut, dialysis bags, molasses cut, contained molasses, random motion, bag increased, net movement water, concentration solute, outcome constant random, percentage change weight, concentration lower concentration,

 779
 3 

Category: Science

join now Save Paper

Related Essays

  • Diffusion and osmosis .... Osmosis is similar to diffusion but is differentiated by .... pressure required to stop water the movement of water. .... c) Hypotonic is less solute to a certain amount .... 614 words
  • Osmosis Lab Reports .... between the solute concentration (glucose, starch and NaCl) and the movement of the water through the selectively permeable membrane by the process of osmosis. .... 273 words
  • Osmosis .... Investigating Osmosis Prediction Osmosis is defined as "the movement of water .... In a high concentration of water the amount of solute (eg sugar) is low. .... 2820 words
  • Study of Osmosis Along A Free-Energy Gradient .... for larger macromolecules (such as the solute, sucrose) to .... intestine- it was found that local osmosis best accounts for water movement (Spring 1998). .... 1935 words
  • How various mechanisms by which substances cross the cell membrane .... be a dynamic equilibrium and there will be no net movement of molecules .... Osmosis is the diffusion of water .... of solutes then the one with less solute is hypotonic .... 857 words

Professional Essays

  • Osmosis Osmosis is the process of diff An essay or paper on Osmosis Osmosis is the process of diff. Osmosis is the process of diffusion of water molecules across a membrane (The Cell). 2432 words
  • Biochemistry Osmosis is the process of diff An essay or paper on Biochemistry Osmosis is the process of diff. Osmosis is the process of diffusion of water molecules across a membrane (The Cell). 2429 words
  • Biochemistry RELATED ESSAYS, Biochemistry Osmosis is the process of diff An essay or paper on Biochemistry Osmosis is the process of diff. Osmosis is .... 1156 words
  • Process--Energy RELATED ESSAYS, Osmosis Osmosis is the process of diff .... Osmosis is the process of diffusion of water molecules across a membrane (The .... 1919 words
  • Enzymes Function Osmosis Osmosis is the process of diff .... osmotic pressure. 22 Apr. 2005. 1. Introduction .... Biochemistry Osmosis is the process of diff .... pressure. 969 words
  • Various Aspects of Science An essay or paper on Various Aspects of Science. 1. One way science and technology enriches our lives is through medical breakthroughs that make it possible for 491 words


Saved Papers

Save your papers so you can
locate them quickly!

Newest Essays


Testimonials

  • " A great Service! The essays were so helpful in sparking ideas for writing my own essays. "
    Michelle B.
  • " DirectEssays.com helped me to raise my grades by 14% last semester! "
    Shannon S.
  • " Thank You So Much!!! You have saved me once again!!! "
    Jack M.
  • " With so many papers to chose from, I was able to get ideas to help me with all of my classes. Thank You! "
    Brian P.
  • " I've used this site for the last 3 years to help me come up with ideas for my papers. "
    Sara J.
Home Join Now Support
Acceptable Use Policy About us FAQ
All papers are for research and reference purposes only!
© 2002-2010 DirectEssays.com. All Rights Reserved. DMCA