L1 Cells Chapter 3

L1 Cells Chapter 3 - Cells: Chapter 3 1. Name the three...

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Cells: Chapter 3 1. Name the three basic parts of a cell and describe the function of each. The three basic parts of a cell are the plasma membrane (the outer boundary of the cell), the nucleus (control center of the cell), and the cytoplasm (the fluid material between the nucleus and plasma membrane), which contains the organelles. 2. How would you explain the meaning of a “generalized cell” to a classmate? It is the cell concept that includes structures and functions common to all cells. 3. What basic structure do all cellular membranes share? All cellular membranes consist of a double layer of phospholipids in which proteins are embedded. 4. Why do phospholipids, which form the greater part of cell membranes, organize into a bilayer –tail-to-tail- in a watery environment? Hydrophobic regions (tails of phospholipid molecules) orient toward each other while the hydrophilic regions (phospholipid heads) orient to the aqueous fluid inside and outside the cell. 5.
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This note was uploaded on 10/28/2011 for the course BIO 212 taught by Professor Klesath during the Spring '09 term at N.C. State.

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L1 Cells Chapter 3 - Cells: Chapter 3 1. Name the three...

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