Mitosis: Double The Cells! 10/9/16
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Summary:
The two common ways things move into the cell are defusion and osmosis. Defusion is the movement of particles from an area of high concentration to and area of low concentration. This movement requires no energy. Osmosis is when water moves from and area with high concentration to an area with low concentration. Solvent is the liquid something is dissolved in while solute is what is dissolved. People thing that the solute disappears, but it doesn't. It is so small the naked eye cannot see. This is why dissolving is a physical change. Isotonic is when both sides of the membrane have the same concentration. Water moves back and forth from both sides. If something is hypotonic there is more solute on the inside of the membrane so water moves in. Hypotonic is when there is more solute on the outside so water moves out. As our lesson of movement across membranes closed, learning about the duplication of cells began. In the picture above you can see each step and what happens. Without mitosis no one would grow and if your cells grow two much without duplicating they would burst.
S&EP-Conducting Investigations:
To analyze what liquids could go in and out of a cell and which liquids have a higher or lower concentration of water we performed and experiment. We measured the egg by it's weight to see what happened. The first egg was placed in water and weighed 76.3 grams. After 3 days, the egg weighed 79.3 grams. Water went into the egg, but not a lot. This means that it is hypotonic. Water is a good solution for dehydration. The second egg was placed in corn syrup and weighed 91.6 grams. After 72 hours, it weighed 47.3 grams. As you can tell from the weight a lot of water left the egg which means it is hypertonic. Drinking a lot of corn syrup is not good for you cells. The last egg was put in salt water and weighed 78.8 grams. Once we saw the egg again it weighed 73.9 grams. Water did leave the egg, but not much. It was hypertonic. This is why we do not drink salt water. This experiment helped me understand what liquids you should drink.
XCC-Cause and Effect:
This week there were two extremely interesting cause and effect relationships that caught my attention. The whole mitosis cycle is a cause and effect relationship. If one stage does not occur the rest of the cycle will not function properly. For example, if in the stage of interphase the cell does not copy the DNA the daughter cell will not have a copy of the genetics. This would be a big problem because the cell would not know what to do. During the movement across membranes experiment there was something I noticed about the salt water egg. If you looked closely it looked like the egg was hard boiled, but it wasn't. After the egg was popped the yolk looked somewhat cooked, as well. It was then I understood that the salt water had lightly cooked the egg. I was very surprised and excited to see both of these cause and effect relationships this week.
Multiplier: This week I was a mutant, to be more specific a wanderer. This is because when we were doing the mitosis packet I shared any information I found with my group.
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Summary:
The two common ways things move into the cell are defusion and osmosis. Defusion is the movement of particles from an area of high concentration to and area of low concentration. This movement requires no energy. Osmosis is when water moves from and area with high concentration to an area with low concentration. Solvent is the liquid something is dissolved in while solute is what is dissolved. People thing that the solute disappears, but it doesn't. It is so small the naked eye cannot see. This is why dissolving is a physical change. Isotonic is when both sides of the membrane have the same concentration. Water moves back and forth from both sides. If something is hypotonic there is more solute on the inside of the membrane so water moves in. Hypotonic is when there is more solute on the outside so water moves out. As our lesson of movement across membranes closed, learning about the duplication of cells began. In the picture above you can see each step and what happens. Without mitosis no one would grow and if your cells grow two much without duplicating they would burst.
S&EP-Conducting Investigations:
To analyze what liquids could go in and out of a cell and which liquids have a higher or lower concentration of water we performed and experiment. We measured the egg by it's weight to see what happened. The first egg was placed in water and weighed 76.3 grams. After 3 days, the egg weighed 79.3 grams. Water went into the egg, but not a lot. This means that it is hypotonic. Water is a good solution for dehydration. The second egg was placed in corn syrup and weighed 91.6 grams. After 72 hours, it weighed 47.3 grams. As you can tell from the weight a lot of water left the egg which means it is hypertonic. Drinking a lot of corn syrup is not good for you cells. The last egg was put in salt water and weighed 78.8 grams. Once we saw the egg again it weighed 73.9 grams. Water did leave the egg, but not much. It was hypertonic. This is why we do not drink salt water. This experiment helped me understand what liquids you should drink.
XCC-Cause and Effect:
This week there were two extremely interesting cause and effect relationships that caught my attention. The whole mitosis cycle is a cause and effect relationship. If one stage does not occur the rest of the cycle will not function properly. For example, if in the stage of interphase the cell does not copy the DNA the daughter cell will not have a copy of the genetics. This would be a big problem because the cell would not know what to do. During the movement across membranes experiment there was something I noticed about the salt water egg. If you looked closely it looked like the egg was hard boiled, but it wasn't. After the egg was popped the yolk looked somewhat cooked, as well. It was then I understood that the salt water had lightly cooked the egg. I was very surprised and excited to see both of these cause and effect relationships this week.
Multiplier: This week I was a mutant, to be more specific a wanderer. This is because when we were doing the mitosis packet I shared any information I found with my group.
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