MSU ANS 315 Quiz 1 Already Graded A+
3 major components of a cell plasma membrane, cytoplasm, nucleus
Which cell is an exception in regard to having the 3 major components? RBC
cytoplasm -Material located between the plasma membrane and membrane surrounding the nucleus
Cell Adhesion Junctio...
3 major components of a cell ✅plasma membrane, cytoplasm, nucleus
Which cell is an exception in regard to having the 3 major components? ✅RBC
cytoplasm ✅-Material located between the plasma membrane and membrane surrounding the nucleus
Cell Adhesion Junction ✅desmosomes and fibrils bind cells by interaction of membrane proteins
Tight Junction ✅just below the free surface of adjacent cells around the periphery of the cell
regulatory function of plasma membrane ✅Hydrophilic and hydrophobic regions determine most
permeability characteristics to water, gas, molecules
Functions of membrane proteins ✅1. Transport of substances across membrane
2. Binding site for stuff in extracellular fluid--hormones
3. Involved in cell to cell junctions
4. May be enzymes with active binding sites
5. Identification of cells
interactions of plasma membrane ✅-environment and adjacent cell
-exterior proteins are variable among cells allowing functional differences between cells
protective function of plasma membrane ✅-water impermeable barrier
-prevents simple diffusion of water soluble particles and molecules
-maintains homeostasis
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