Semipermeable membrane

change in concentration of sucrose affect the change in mass of potatoes cores. Introduction This experiment was focus about osmosis. If solute cannot readily move across the membrane, water will move and tend to balance the solute concentration. In this process, called osmosis, water moves across a membrane from the hypotonic compartment (with a lower concentration) into the hypertonic compartment (with a higher concentration). In hypotonic solution, the concertation of a substance…

The results of this experiment show that as the sucrose concentration of the potatoes increases, the potato appearance, shape, and flexibility increase. The qualitative observations show the flexibility of each potato before and after the incubation. The initial observations for the potato slivers were slightly stiff and high in flexibility. After leaving the 10 mL sucrose concentration solution for 45 minutes, the results show an increase in appearance, and flexibility of each individual potato…

This experiment determined how solute concentration affected the rate of osmosis in a cell and the outside environment. Three pieces of dialysis tubing were used as three different cells, each filled with different solute concentrations. Each one of the cells was placed in one of three beakers that were filled with tap water. The masses of each of these cells before being placed in the beakers, and afterwards in ten minute intervals for an hour. The percent difference between the initial mass…

Cecilia Wong Nature of the task and the research question: Two centimetre piece of potato is bathes into different salt solutions (0%, 5%, 10%, 15%, 25%, 35%) over a period of time, to determine the effect of different salt solutions on osmosis. To investigate the effect of increasing the concentration of sodium chloride (0%, 5%, 10%, 15%, 25%, 35%) on the process of osmosis, by calculating the mass change of the potato core (g, ±0.01g) at room temperate of lab (25.0˚C) Table 1: Raw data Table…

diffusion. Osmosis is diffusion of water. Tonicity compares the environment inside of a membrane with the outside. When a membrane bound structure has a higher concentration of water on the outside of the membrane than the inside is hypotonic. Hypertonic is when a membrane bound structure has a higher concentration of water on the inside of the membrane than the outside. When something is isotonic the inside of the membrane has the same concentration as the outside of the structure. If water…

effects on the porosity in potatoes is by the dehydration process. The removal of water during the rehydration process causes the cell to rupture due to stresses subjected to the cell membrane and cell wall of the potatoes. In addition, the stresses (usually generated by the water vapor) subjected to the cell membrane and cell wall will produce the pressure towards the food's cavity surfaces resulting in the increase of porosity of the product (Singh. F et. al, 2014). Therefore, it can be said…

1a. Osmosis: Osmosis is the diffusion of water across a selectively permeable membrane. Cell membranes have pores that are where molecules pass through the membrane. These pores are too small for some molecules like sugar to pass through, but are large enough for water molecules. These water molecules move across the membrane from areas of low concentrations of solute to high concentrations of solute. The different concentrations affect the water level. However, when a solution is dilute, the…

The hypothesis could be proven. If water is filtered through a pine dowel, then this permeable wood will filter the impurities out of the water through the process of osmosis. The water will pass through leaving the impurities behind. This experiment did prove the hypothesis however, it may have worked better if more time was allowed for most of the water to go completely through the wood, if the wood were less dense, and if the dirt in the water wasn’t so fine. In my experiment I observed that…

Principle Dialysis works on the principles of the diffusion of solutes and ultrafiltration of fluid across a semi-permeable membrane. Diffusion is a property of substances in water; substances in water tend to move…

One’s body is made of 70% of water that in which is the main component of the cells within one’s bodies. Within these cells, there are particles that move inside and outside through a semi-permeable membrane. This process is called diffusion. In diffusion, particles move in motion at a random speed from a high concentration to an area of low concentration until all of the molecules are dispersed evenly. It is important to remember that involvement with diffusion depends on the concentration. The…