Different Types of Cells:
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As you have already learned, everything that lives is made up of cells.
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Just like there are many different types of organisms, there are many types of cells that do various functions.
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But all of these cells can be divided up into two main categories: prokaryotic and eukaryotic cells.
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Although these cells have some distinct differences, these cells are more alike than they are different.
What do all cells have in common? All cells contain DNA.
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DNA is the genetic material that carries the instructions for life.
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All cells also are covered by a cell membrane. This helps the cell regulate what substances come in and out of it.
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All cells are also made from the same basic chemicals: carbohydrates, proteins, nucleic acid, minerals, fats, and vitamins.
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Finally, all cells have ribosomes that are used to make proteins.
Quick Check:
- How are the cells in your body like the cells in a cow's body? Name similarities in a LIMIT of two similarities Both contain DNA and both have cell membranes.