BIOWEB
nverdae@nvcc.edu
Emma Erdahl, Associate Professor of Biology
Northern Virginia Community College
Revised 8/23/00
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11. Cell contents are isolated from many substances in the environment due to the high concentration of ____ in the cell membrane. a. phospholipids and cholesterol b. proteins c. nucleic acids d. enzymes Most of the materials that a cell comes in contact with are water soluble. Hence, they are not soluble in lipids. There are some important exceptions to this such as the steroid hormones, estrogen and testosterone. In Bio 102 you will study how specificity of cell response to these hormones is achieved. |
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