Eukaryotic Cells

Eukaryotic Cells - Eukaryotic Cells

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Eukaryotic Cells Eukaryotic cells  are generally larger and more complex than prokaryotic cells. They also contain a  variety of cellular bodies called organelles. The organelles function in the activities of the cell and are  compartments for localizing metabolic function. Microscopic protozoa, unicellular algae, and fungi  have eukaryotic cells.  Nucleus.  Eukaryotic cells have a distinctive  nucleus , composed primarily of protein and  deoxyribonucleic acid, or DNA. The DNA is organized into linear units called  chromosomes , also  known as  chromatin  when the linear units are not obvious. Functional segments of the  chromosomes are referred to as  genes.   The nuclear proteins belong to a class of proteins called histones.  Histones  provide a supportive  framework for the DNA in chromosomes. The DNA replicates in eukaryotic cells during the process  of mitosis. 
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This note was uploaded on 11/11/2011 for the course BIO 101 taught by Professor Pesthy during the Fall '07 term at Texas State.

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