Osmosis And Diffusion

Words: 696
Pages: 3
Open Document
Diffusion is when the molecules in a space spread to fit the space they occupy. This prevents clusters of molecules from occupying one space and leaving the rest empty. An example of this would be have a container of water with a wall dividing the water from the empty part of the container. Opening the wall would “diffuse” the water and cause it to flow into the empty part of the container. It is considered passive because it doesn't require any energy. Using the water as example for this, the water doesn't need any energy to fall into the empty space.

Active transport is a way of forcefully moving molecules where you want them to go, which requires energy. An example of this would be taking the wall and wading it through the container to …show more content…
There are three types of osmosis. Hypertonic, hypotonic, and isotonic. Hypertonic is when a red blood cell is pleased in a solution with low solvent, which causes the cell to struggle to maintain homeostasis. This in turn will cause the cell to use release most of its water to be equal with its surroundings which causes the cell to dehydrate, shrivel up, and die. Hypotonic is the exact opposite, when there is so much solvent that the cell has to take in more of it than normal. This causes the cell to burst from the large quantity of water it intakes. Isotonic is the perfect balance, which allows the water molecules to phase in and out, leaving the cell and human body in perfect …show more content…
When we take in oxygen through our lounges it goes down into our alveoli (a small sac of thin cells located in the lounges) and into our capillary beds. The capillary beds have a large amount of carbon dioxide in them. These will diffuse, with the beds releasing carbon dioxide to make room for the oxygen in order to maintain homeostasis.

Not pictured: The water level in the A side will slowly rise
As stated earlier, the cell would maintain homeostasis when placed in a isotonic solution, shrivel up and die in a hypertonic solution, and overfill and burst in a hypotonic solution

Facilitated diffusion does not require energy because the molecules still move along their gradient, but they have to pass through a protein in order to go through. As explained earlier, the protein is simply a port that allows certain molecules in and out of the cell.

When a molecule is flowing along its gradient there is a chance it will come in contact with one of the many proteins laid out along the membrane. When it comes in contact the protein will change its shape to push the molecule further in while keeping it on pace with its
Show More

Related Documents: Osmosis And Diffusion

Osmosis And Diffusion Essay

Did you know that osmosis and diffusion help you survive and has the ability to help you respond to the environment you are in? Osmosis helps water move through the cell membrane. Diffusion helps move molecules across the cell membrane. there are two types of diffusion facilitated transport and passive transport. This essay will focus on the topic osmosis and diffusion, also how they help us maintain homeostasis. The dictionary definition of homeostasis is the tendency of an organism or a cell…

Words 446 - Pages 2

Diffusion: Osmosis and Sucrose Essay

Diffusion and Osmosis lab Abstract: In this experiment, we learnt about Osmosis and Diffusion through potato slices and dialysis tubes in different concentration of sucrose; (Di water, .2, .4, .6, .8, and 1.0). However, our result was quite off in both of out labs but although our graph and our results were off, it still partially backed up our hypothesis. Introduction: Osmosis is a special kind of diffusion in which water moves through a selectively permeable membrane while…

Words 517 - Pages 3

Osmosis And Diffusion Lab Report

become clear and the starch filled bag will be white. Materials: 1 plastic baggie Corn starch Iodine Tap water Stopwatch Twist tie or rubber band Clear drinking glass Research Question: What is the difference between osmosis and diffusion? Experimental Procedure: 1. Place ½ cup of water and 1 tsp of corn starch into the baggie. 2. Seal the baggie and also place the twist tie or rubber band on it as an extra security measure. 3. Fill your drinking glass half full with tap…

Words 455 - Pages 2

Osmosis Diffusion Lab Report

Sasha Brown Dipitro 10/17/2014 Osmosis Diffusion lab Procedure1: The solution hydrochloric acid which had a pH of 4 was mix with 0.1 phenolphthalein and the color stayed the same, it did not change. The base was sodium hydroxide which had a pH of 10 and when mix with phenolphthalein it turned fuschia. Agar size(cm) Surface Area Volume Ratio of surface area to volume Cell A (2x2s0.5) 12cm2 2cm3 6cm2:1cm4 Cell B (1x4x0.5) 13cm2 2cm3 6.5cm2:1 cm 4 Cell C (2x4x0…

Words 1082 - Pages 5

Essay laboratory report(diffusion and osmosis)

Introduction & Hypothesis In this experiment we will investigate the effect of solute concentration on osmosis by placing dialysis bags in the appropriate solution and recording the change in the weight of the bag over a period of 40 minutes. Furthermore, our hypothesis for Bag 1 is that water will move from the beaker to the dialysis bag because bag has higher concentration of solute. Hypothesis, Bag 2: Water will move from bag to the beaker because beaker contains higher concentration of solute…

Words 459 - Pages 2

Research Investigation On Osmosis

the aim and background information 2.1. Diffusion is the spontaneous kinetic movement by which molecules move from an area of a high concentration to an area of low concentration. Diffusion continues until it reaches equilibrium. Osmosis is similar to Diffusion but it’s the process in which water moves across a semi-permeable membrane and goes to the higher concentration of solute.1 2.2. Important factors to Osmosis and Diffusion include Temperature, Concentration and Surface area…

Words 1529 - Pages 7

Egg Osmosis Lab Report

demonstrate the system of how osmosis and diffusion works. More specifically to examine the movement of how substances flow in and out of the cell membrane. Which was demonstrated by soaking an egg in various liquids with a time table to see how it would affect the egg. The egg can be substituted as the cell membrane. Predictions, observations, and procedures were made. Before the lab procedures can be discussed, Osmosis and other key terms should be mentioned and explained. Osmosis is a process by which…

Words 706 - Pages 3

Passive Transport Essay

of a membrane and the other. There are three forms of passive transport: 1. Diffusion 2. Osmosis 3. Facilitated Diffusion 1. Diffusion Molecules and ions dissolved in the cytoplasm and extracellular fluid are in constant random motion. Diffusion – is the net movement of ions or molecules from an area of higher concentration to an area of lower concentration until equilibrium is reached. Factors that affect diffusion: relative concentrations both inside and outside of the cell how readily a molecule…

Words 562 - Pages 3

Osmosis: Osmosis and Sucrose Solution Essay

molecules and small ions in and out of the cell. Diffusion: The spontaneous movement of molecules or particles in solution along a concentration gradient (i.e. from areas of high concentration to a low concentration) until there is an equilibrium. Osmosis: The diffusion of water molecules through a selectively permeable membrane from a region of low solute concentration to a region of high solute concentration. Objective • Demonstrate diffusion across a semi-permeable membrane •Measure the…

Words 1253 - Pages 6

Lab Sheet: Plasma Membrane Transport

membrane (cell membrane) transport, specifically osmosis, which is a special form of diffusion. Plasma membrane transport is a vital function of all cells and is a necessary foundational concept to understand. Objectives Objectives for this week’s lab include: 1) learning the difference between active and passive transport mechanisms, 2) see how solute concentration affects the movement of water, and 3) be able to describe the process of osmosis and diffusion along with the factors that affect it. Overview…

Words 364 - Pages 2