Diffusion Lab

The purpose of the lab was to help us understand the cell membrane inside and outsides. We also learned a key word called diffusion. It is a making a substance that is like a strong chemical and less concentrated. While this is happening molecules try their best to make more space. For example, if we ask two units to fit in one class room they will feel squeezed and whenever the door opens we will all try to get more room. Same with the molecules, they will try to get more space similar to us human beings. Water is a key thing that supports diffusion and it makes the chemicals more diluted and in conclusion it makes the chemicals weaker. Dilution also makes it less concentrated because of osmosis. Osmosis is the movement of the water molecules. Some other words we learned in class were hypertonic, concentration, indicator, and dilute. Hypertonic means high concentration. Concentration means the amount of a substance per defined space. The word dilute means to make it less concentrated. Indictor means a chemical detector for other particles.

In the experiment in class we learned that when we put corn starch in a bag and put it in iodine it turns purple. The cause of this was the permeable membrane. This means to penetrate through the pores, interstices, etc.  It let the iodine pass through the bag into the cornstarch which showed signs of low concentration. Similar to the cell membrane because it controls what goes in and comes out of the cell just like how the permeable membrane let the iodine passes through the baggie. But the difference is that the permeable membrane lets the iodine pass through and the cell membrane lets food and water pass through.  It is important to know how our body works it could decide a better future for ourselves.

One connection that I can make to life is that when a city or state becomes way too populated they try to expand their country. For example, the thirteen colonies. Another connection is if you put water in a cup and knock it down every will rush out. One more connection is when a group of people exit a roller coaster or a movie everyone rush out of a movie theatre or ride, leaving room in the theatre/ride for the next group. Last and not least is that if you are playing basketball all the air just rushes out.