Diffusion of innovations

and, or, iodine. Also, to find out wither potatoes are hypotonic, hypertonic, or isotonic by testing the different amounts of sucrose solutions Introduction: The necessary background information needed for this lab is the definition of osmosis, diffusion, active transports, passive transports, permeability, concentration, tonicity, and to now the scientific concepts of hypotonic, isotonic, and hypertonic. Hypothesis: For part 1 my hypothesis is: That the starch will diffuse across the…

How ADH Helps Regulate Water Reabsorption The kidneys are highly specialized organs that regulate water homeostasis in the human body. They are composed of functional units called the nephrons. Within the nephron, the majority of water homeostasis takes place in the collecting duct, as this component is responsible for water excretion (Sands & Layton 2017). The crucial hormone that is released in the collecting duct and is responsible for stimulating water retention is the antidiuretic…

A special case of diffusion is known to be osmosis, which is known to be the diffusion of water through a water allowing or permeable membrane. Only water should be able to move through most oftenly. Therefore, the diffusion of one or more other substances along with water should not come in, such as solutes. An everyday example of osmosis is from the result of proned fingers. The bathtub that the person is showering is less concentrated in comparison with your body, thus, it is using osmosis to…

Cholesterol has a unique structure that includes four linked hydrocarbon rings forming the steroid structure. The hydrocarbon tail links to one end of the steroid and a hydroxyl group linked to other end. While the hydroxyl group is able to form hydrogen bonds with nearby carbonyl oxygen of phospholipid. Additionally, cholesterol is an amphipathic macromolecule because it has a water-soluble polar region that dissolves in water, but almost the entire is non-polar which does not dissolves in…

1. (a) Diffusion refers to the movement of molecules from an area of high concentration to an area of low concentration of those molecules. The factors that influence the rate of diffusion across a membrane are: ~ the extent of the concentration gradient – the greater the difference in concentration on either side of the membrane, the faster the rate of diffusion ~ the mass of molecules diffusing – the heavier they are, the slower they will diffuse across the membrane ~ the distance travelled –…

There are 3 ways for passive transport which are osmosis, diffusion, and facilitated diffusion. Osmosis is when water moves a selectivity permeable membrane. There are three types of solution of osmosis. One of them is isotonic solution where water crosses the membrane at the same rate. Hypertonic is where it loses water to the surroundings. Hypotonic is where water will enter the cell quicker than it leaves. Another type is facilitated diffusion which does not allow polar molecules to pass…

The factor that determined the rate and direction of osmosis in the experiment was the amount of solute in the dialysis tube. This is shown through the amount of water that transferred into the dialysis tube as the sucrose concentration was raised. As the ratio from solute to water was heightened (as shown within the graph and data table), the amount of water that was transferred into the dialysis tube increased. From the data collected, it can be concluded that water and solute will move…

In the first part of the lab we were able to study the diffusion of various carbohydrates and the osmosis of water. Diffusion is the process of small molecules moving through a semipermeable membrane while osmosis of water is the movement of water through a semipermeable membrane from an area of high water potential (low solute potential) to an area of low water potential (high solute potential). Both diffusion and osmosis move in the direction that would create equilibrium on both sides of the…

dialysis bag to indicate whether or not the bag is hypotonic, hypertonic or isotonic in the different concentrations of water and sucrose. By carrying out this experiment we will be able to better understand how the process of diffusion and osmosis works. My hypothesis is that diffusion will continue to occur throughout these various mixture of concentrations in the dialysis bags until equilibrium is reached. Once equilibrium is reached there should not be any net movement. Therefore, I predict…

Observing Osmosis INTRODUCTION Osmosis is the “diffusion of water across a selectively permeable membrane” (Raven et al. G-16). In this experiment, dialysis tubing was used to mimic the selectively permeable membrane to show what osmosis does when placed in different solutes. We filled dialysis tubes fill with different percentages of solute and placed them in beakers full of a different solute. Through this experiment, I saw what happens when the solution becomes hypertonic, hypotonic, and…