Lab Report: Diffusion And Osmosis
My First Lab Report: Diffusion and Osmosis To begin, this is my first time doing an experiment and a lab report for biology’s class. Although, it was a little hard at the beginning, my team and I got the hang of it and we finished it on time. It was actually kind of fun.
There were three steps in the experiment:
3.1 A – Molecular Movement: In this session, I was observing a sample and determining if there was a movement or not.
3.1B –Diffusion through semi-permeable membrane dialysis tube: In this second part, my team did an experiment to prove if there was movement inside and outside the dialysis tube.
3.2B-Osmosis in plant’s cells: In the last step of the experiment, we were observing two different samples of plant’s cells and determining …show more content…
Following this last procedure, we place the dialysis tube inside the beaker and make sure it was under water. Final, we drop some drops of IKI2 in the water and we wait 30 minutes to see if there was some a change in the dialysis tube. As a result, there was change in the color of the glucose starch bag going from its original color to a dark black color. For this we developed the conclusion that the IKI2 that we drop in the water went inside the bag. For the second half of this experiment we did the sugar test with three samples: water, water from the beaker and starch from the glucose starch and place in different test tubes. Then we drop three drops of Benedict’s test to each test tube. After that we place the tubes in a beaker with boiling water to see what changes occur. First, the water did not change as we expect, the glucose starch tube went black as we expect, and the water from the beaker with IKI2 took a yellow-orange color. By this change in the color of the test tube water we got to the conclusion that there was diffused, moving of particles from high concentration to low concentration, in two times because at the same time that IKI2 went inside the bag, some glucose starch went outside the
There were three steps in the experiment:
3.1 A – Molecular Movement: In this session, I was observing a sample and determining if there was a movement or not.
3.1B –Diffusion through semi-permeable membrane dialysis tube: In this second part, my team did an experiment to prove if there was movement inside and outside the dialysis tube.
3.2B-Osmosis in plant’s cells: In the last step of the experiment, we were observing two different samples of plant’s cells and determining …show more content…
Following this last procedure, we place the dialysis tube inside the beaker and make sure it was under water. Final, we drop some drops of IKI2 in the water and we wait 30 minutes to see if there was some a change in the dialysis tube. As a result, there was change in the color of the glucose starch bag going from its original color to a dark black color. For this we developed the conclusion that the IKI2 that we drop in the water went inside the bag. For the second half of this experiment we did the sugar test with three samples: water, water from the beaker and starch from the glucose starch and place in different test tubes. Then we drop three drops of Benedict’s test to each test tube. After that we place the tubes in a beaker with boiling water to see what changes occur. First, the water did not change as we expect, the glucose starch tube went black as we expect, and the water from the beaker with IKI2 took a yellow-orange color. By this change in the color of the test tube water we got to the conclusion that there was diffused, moving of particles from high concentration to low concentration, in two times because at the same time that IKI2 went inside the bag, some glucose starch went outside the