cell functions

cell functions - Part 2. Cell membrane Function Analogy The...

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Part Function Analogy 2. Cell membrane The cell membrane is a semi permeable boundary layer made up of phospholipids that binds the cell together. A road barrier acts as a boundary between two or more roads. 3. Nucleus Nuclear Envelope Nucleolus DNA The nucleus is the brain of the cell; it contains both the DNA and the nucleolus. The nuclear envelope is a membrane that allows certain things in and out of the nucleus The nucleolus works with the ribosomes to make RNA, copies of the DNA The DNA contains instructions that control the cell. The Mayor is the leader of Cherry Hill; he has both the laws and the copy machine. The Medal detectors inside City Hall allow certain things in and out of City Hall The copy machine copies the city laws. The city laws are composed of rules that run Cherry Hill 4. Ribosomes Ribosomes are non-membranous organelles composed of proteins and RNA. Ribosomes make chains of polypeptides, which create protein synthesis. The
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This note was uploaded on 03/25/2010 for the course BIO 5381 taught by Professor Smith during the Spring '10 term at N. Arizona.

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cell functions - Part 2. Cell membrane Function Analogy The...

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