Sunday, March 23, 2014

Cells All Around

Introduction 
       We are going to start to learn about three different types of cells, the Elodea Cell, the Onion Cell, and the Cheek cells. I am exited to learn about what these three types of cells do, and why we have to learn about them. 

Elodea Cells 

     In our last science class we decided to do an experiment with cells. We were supposed to examine each one closely and see what are their differences. The Elodea Cell is circular and inside it, it's like as if there was a brick wall. I looked at the Elodea Cell at different levels, 4X, 10X, 40X and 100X, they were all similar. In the Elodea Cell, there were little tiny green balls inside the "bricks" those are the Chloroplast, which are spread near the cell wall. The Chloroplast is what allows the plants to create photosynthesis and the cytoplasm is a Jelly-like substance that is also inside the "bricks" and is what the Chloroplast "swims in". The thing that creates the brick is the cell wall which is around it, and is also what protects the cell, the Elodea Cell also had a nucleus, which is the "brain" of the cell, and what protected the nucleus was the cell membrane. Elodea cells also have the Nucleoli which is inside the Nucleus, and the Chromosomes which also "swims" in the Cytoplasm.                                             



Onion Cells 

      I also Examined the Onion Cells in different levels; 4X, 10X, 40X, and 100X. The Onion Cell also had the tiny little green balls, which are the Chloroplast, and it also had a Cytoplasm. The Onion Cells are round but they are not shaped like a brick wall, they are shaped like a little hexagon wall. I also noticed the nucleus. The Nucleus is like the brain of the a Cell, not all Cells have it, but the majority does. It controls the Cell and it is also "swimming" in the Cytoplasm just like the Chloroplast. Just like the Elodea Cell the cell membrane protects the nucleus. Onion Cells, just like the Elodea cells, also have Nucleoli inside the nucleus, and of course Chromosomes "floating" around the Cytoplasm. 



Cheek Cells

         The last Cell we examined was the cheek cell. To get our cheek cells, we got those little toothpicks, and we put them inside our mouths and rubbed them against our "inside cheeks". I will admit, it was very disgusting, but sometimes, to be a scientist you have to check everything, and you can't be scared or disgusted. The Cheek Cells have more or less the same cell parts as the Elodea Cells and the Onion Cells, it has a Cytoplasm, it doesn't have a Chloroplast because cheek cells don't do a process called photosynthesis, which is something that only plants have. Cheek Cells have a nucleus which is the brain of the cell. They have a Cell membrane, which is like a wall that protects the nucleus. When I looked at the cheek cells in the microscope, again with the levels of 4X, 10X, 40X, and 100X, I noticed that the cell was not positioned like a brick wall or whatever wall, there was just some orange and green dots "swimming around" in the Cytoplasm. The Cheek Cells, just like the other two cells, also have the Nucleoli, which is what "controls" the Nucleus, and the Chromosomes which are also, "floating" around the Cytoplasm. 



   Conclusion 
        In conclusion to our experiments I enjoyed learning about these cells a lot. I hope I get a chance to learn more about other cells in specific. I have to admit in the beginning I wasn't really exited to learn about cells, but I think it is because I had never learned of specific cells, I only learned of what was inside a cell, but in the end I quite enjoyed learned more and experimenting different cells, and seeing their different cell parts.

1 comment:

  1. Hi Ale,

    The brick-shaped cells of the Elodea had many green spheres, which are the chloroplasts. Isn´t it amazing to think that our lives depend so much on what the plant cells produce in them? The NUCLEAR membrane is the thin layer that wraps up the contents of the nucleus (the nucleoli and the chromosomes).

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