Science Solution - The Process of Mitosis

11/28/2012

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        I think almost all cell goes through mitosis. It is part of their life cycle where they reproduce themselves. There are six stages of mitosis: Interphase, Prophase, Metaphase, Anaphase, Telophase, and Cytokinasis. Usually there are only four or five phases shown, but this is the whole process. Mitosis occurs to both plant and animal cell or eukaryotic cells. However it occurs to bacteria or procaryotic cells as binary fission. I am only going to talk about mitosis of plant and animal cells.
      Interphase, the first step of the cell cycle is where the cell spends most of its time developing. During this time it eats and grows just like a baby. However during the end of this time the cell makes copies of their DNA so they can reproduce. In prophase the cell's chromosomes turns into. Then in metaphase chromatids pair up in one pair each. During anaphase the chromatids move to opposite sides of the cell. By this time on is when then cell starts to separate. Telophase is the time the chromatids push off to the side of the cell and it looks like two small circles connected. Finally, cytokinasis is when the cells break apart from each other.
     In plant cells a cell plate cell forms between the two cells to break them apart. Still in an animal cell the two cells doesn't need a cell plate to separate them; they break apart like squeezing jello or jelly. Mitosis could also cause cancer if anything goes wrong during the process. From this cancer cells reproduce rapidly. However without mitosis we wouldn't grow and may even not have enough cells. This process in your body starts without you noticing it. Well, maybe you might notice if a long time pass by.
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Science Solution - How are Plant, Animal, and Bacteria Cell Alike or Different?

11/14/2012

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       Plant, animal, and bacteria cells are different from each other because of the parts and cell functions. A plant and animal cell has have nearly every cell parts in common, but a plant cell has chloroplast to collect sunlight to create energy or chemical energy. It has a large central vacuole that stores nutrients and act like the lysosomes to digest food particles as well. That means the plant cell is a producer, not a consumer. In an animal cell, it doesn't have any chloroplast to create energy so it is a consumer. Although the animal cell does have vacuoles; they are not as big as plant vacuoles. Both the plant and animal cells are likewise called eukaryotes cell. Which means the organism is made of more than one cell. 
     The bacteria has the most difference from both the plant and the animal cell because it doesn't look like a complete set of the cell structures. But believe it or not, it actually is the complete part. The bacteria cell is built to be like that. It doesn't have any of the cell parts except the cell membrane, cell wall, DNA, and flagellum. The flagellum is like a tail that helps the bacteria moves around. A bacteria is also called a prokaryotic cell too. It means the organism has only one cell. All the cells are alike by some of their functions such as their DNA. It gives the cell instructions of what to do. Another thing that performs they are alike is the sizes; most of these cells are only microscopic view.
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Science Solution - Is doing the Edible Cell Project worth it?

11/7/2012

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        I think we should do the ''Edible Cell'' project because it is a break from learning and students learn with fun experiments. After all the studying students could make a project closely related to the subject as a pay off, to see how much students learn from doing the subject. Doing projects makes students want to participate better because some students do not want to learn with lot's of work. With less thinking some students can raise their grades up. 
     A connection I have in doing ''Edible Cell'' is from cooking cupcakes with my mother. If you don't have the same or equal amount of ingredients the project may not turn out good. You also need to layer the cream nicely so it won't be messy too. You have to plan a measurable scale to create a nicely done design. Using measuring cups to measure the flour and mixture in stir well and put it in the oven. However I do not think students learn much from the project because after you build the project you just eat it. Also, after all the studies, tests, and work I think most students could remember all the cell parts and functions. 

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