BIOL 260 Chapter Notes - Chapter 3: Protein Filament, Cell Membrane, Skeletal Muscle
Document Summary
Section 3. 1 intro to cells: shapes of cells, squamous: thin, flat, scaly shape, often with a bulge where the nucleus is (sunny side up egg) 3. 2 cell surface: the plasma membrane defines the boundaries of the cell, governs its interaction with other cells, and controls the passage of material into and out of the cell. Pseudopods: cytoplasm-filled extension of the cell with varying shapes: takes part in locomotion and food capture. Involves both nonpermeating and permeating solutes: tonicity: a solution"s effect on the fluid volume and pressure of the cell, hypotonic solution: nonpermeating solutesfluid. Involves only nonpermeating solutes: red blood cells, crenate: cell shrinkage due to loss of water; hypertonic, hemolyse: decrease in the amount of oxygen that blood gets; hypotonic, stay the same volume: isotonic. 3. 4 cell interior: nucleus, nucleolus, rer, ribosome, ser, peroxisome, proteasome, mitochondrion, centriole, centrosome.
