Abraham Baraki
10/30/16
Bio-lab 4 report
Angela Dipaolo
Introduction
Compare Diffusion and Osmosis
Diffusion is the movement of substances from high concentration to low concentration. In this movement do not occur a membrane. Molecule of gas like perfume it can diffuse and sugar will be dissolve in the cup of coffee. In a diffusion process gradient concentration is high to low
Osmosis is the movement of water through the permeable membrane. Osmosis is any the process of substance that reduces pressure exposed increase the entropy. Water is solvent so water move from low concentration to high concentration is called osmosis, that is hypotonic, but the water move from high to low is hypertonic solution. And if the water stands equal inside and outside it is isotonic solution. Hypertonic solution has less than hypertonic solution. …show more content…
04 m, and 06)
200ml distilled water
I2K1
Bag of beaker
Clip
Pepper towel
Test tube
Paper towel
In our experiment in our experiment we filled water four beakers, 0.2m, 0.4m and 0.6m solutions we have been measured each potato from the beginning which was pealed the same shape and the same size. We filled water four beakers, 0.2m, 0.4m and 0.6m solution, so we have been measured each potato from the beginning which was pealed the same shape and the same size. The solution of potato was recorded final mass- initial mass for osmosis result.
Therefore, the percent weight change of potatoes for a control group NaCl solution. in a control group piece of potato is 0.2m ,0.4m and 0.6m NaCl will be lost 4.6%, 8.89 and of the initial weight. However, water was move in and out in the cell membrane. So starch was not moving either in or out to the bag. In a hypertonic environment water move out from the cell, then the cell w all be lose water. But in the hypotonic the cell walls gain water.
Solution initial mass final mass change Percent weight change pure water (0m)
5.49
5.7
0.21
3.83
0.2m
10/30/16
Bio-lab 4 report
Angela Dipaolo
Introduction
Compare Diffusion and Osmosis
Diffusion is the movement of substances from high concentration to low concentration. In this movement do not occur a membrane. Molecule of gas like perfume it can diffuse and sugar will be dissolve in the cup of coffee. In a diffusion process gradient concentration is high to low
Osmosis is the movement of water through the permeable membrane. Osmosis is any the process of substance that reduces pressure exposed increase the entropy. Water is solvent so water move from low concentration to high concentration is called osmosis, that is hypotonic, but the water move from high to low is hypertonic solution. And if the water stands equal inside and outside it is isotonic solution. Hypertonic solution has less than hypertonic solution. …show more content…
04 m, and 06)
200ml distilled water
I2K1
Bag of beaker
Clip
Pepper towel
Test tube
Paper towel
In our experiment in our experiment we filled water four beakers, 0.2m, 0.4m and 0.6m solutions we have been measured each potato from the beginning which was pealed the same shape and the same size. We filled water four beakers, 0.2m, 0.4m and 0.6m solution, so we have been measured each potato from the beginning which was pealed the same shape and the same size. The solution of potato was recorded final mass- initial mass for osmosis result.
Therefore, the percent weight change of potatoes for a control group NaCl solution. in a control group piece of potato is 0.2m ,0.4m and 0.6m NaCl will be lost 4.6%, 8.89 and of the initial weight. However, water was move in and out in the cell membrane. So starch was not moving either in or out to the bag. In a hypertonic environment water move out from the cell, then the cell w all be lose water. But in the hypotonic the cell walls gain water.
Solution initial mass final mass change Percent weight change pure water (0m)
5.49
5.7
0.21
3.83
0.2m