IV. Discussion
The Concentration Gradients is known as known as diffusion. They are spontaneous process because there is no energy input at the beginning (Reece et al., 2011). Each substance could diffuse to its own concentration gradient without affected by the concentration of other substances (Scott 2015).In the first experiment of the Concentration Gradients. The color of the clear water was expected to change into the color of the potassium permanganate dye, which was purple. Observation was shown to match with the expectation. When the dye crystal was put into the water at the beginning, it created the concentration gradient of water and the concentration gradient of the dye. The crystal itself had a higher concentration of potassium permanganate, and the water in the beaker had a lower concentration potassium permanganate. In other words, the water molecules in the beaker had a higher concentration of water, and the crystal had a lower …show more content…
When osmosis is applied, it dictates that the movement of water across cell membranes and the balance of water between the cell and its environment (Reece et al., 2011). On the first experiment of the effects of Osmosis on Potato cell, the plain potato was compared with a potato that had salts on. The plain potato was the negative control, and it changed to brown color after waiting for a certain amount of time. That happened because the potato cell was broken when it was cut, and the enzyme inside of the potato oxidized. On the other hand, the potato with salt did not turn color but having water on top of it. When the potato with the salt sprinkled on, the top of the slice had a higher concentration of salt and a lower concentration of water. However, there were relatively more water molecules inside of the potato, which means that the concentration of water molecules was higher inside of the potato. Water molecules immediately diffused from inside to outside, which met the
The Concentration Gradients is known as known as diffusion. They are spontaneous process because there is no energy input at the beginning (Reece et al., 2011). Each substance could diffuse to its own concentration gradient without affected by the concentration of other substances (Scott 2015).In the first experiment of the Concentration Gradients. The color of the clear water was expected to change into the color of the potassium permanganate dye, which was purple. Observation was shown to match with the expectation. When the dye crystal was put into the water at the beginning, it created the concentration gradient of water and the concentration gradient of the dye. The crystal itself had a higher concentration of potassium permanganate, and the water in the beaker had a lower concentration potassium permanganate. In other words, the water molecules in the beaker had a higher concentration of water, and the crystal had a lower …show more content…
When osmosis is applied, it dictates that the movement of water across cell membranes and the balance of water between the cell and its environment (Reece et al., 2011). On the first experiment of the effects of Osmosis on Potato cell, the plain potato was compared with a potato that had salts on. The plain potato was the negative control, and it changed to brown color after waiting for a certain amount of time. That happened because the potato cell was broken when it was cut, and the enzyme inside of the potato oxidized. On the other hand, the potato with salt did not turn color but having water on top of it. When the potato with the salt sprinkled on, the top of the slice had a higher concentration of salt and a lower concentration of water. However, there were relatively more water molecules inside of the potato, which means that the concentration of water molecules was higher inside of the potato. Water molecules immediately diffused from inside to outside, which met the