Intracellular Component3

Intracellular Component3 - Intracellular Components...

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Intracellular Components Eukaryotic Organelles: The Cell Nucleus, Mitochondria, and Peroxisomes We will now begin our discussion of intracellular organelles. As we have mentioned, only eukaryotic cells have intracellular sub-divisions, so our discussion will exclude prokaryotic cells. We will also focus on animal cells, since plant cells have a number of further specialized structures. In this section we will discuss the importance of the cell nucleus, mitochondria, peroxisomes, endoplasmic reticulum, golgi apparatus, and lysosome. The Cell Nucleus The cell nucleus is one of the largest organelles found in cells and also plays an important biological role. It composes about 10% of the total volume of the cell and is found near the center of eukaryotic cells. Its importance lies in its function as a storage site for DNA, our genetic material. The cell nucleus is composed of two membranes that form a porous nuclear envelope, which allows only select molecules in and out of the cell. The DNA that is found in the cell nucleus is packaged into structures called chromosomes.
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This note was uploaded on 01/24/2012 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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Intracellular Component3 - Intracellular Components...

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