BY 108 Chapter Notes - Chapter 5: Immunocytochemistry, Confocal Microscopy, Scanning Electron Microscope
Document Summary
Genetic material - found in central nucleoid area of prokaryotes or nucleus (surrounded by nuclear envelope) of eukaryotes. Dna has the genes that code for the proteins made by the cell. Cytoplasm - semifluid substance within the cell containing sugars, amino acids, proteins, and organelles (specialized structures in eukaryotes) Plasma membrane - phospholipid bilayer separating the cell from its surroundings. Proteins in membrane determine how cell interacts w/ the environment transport proteins - help molecules/ions move across the membrane. Receptor proteins - sends messages to the cell when in contact w/ certain molecules. Markers - identify to the cell as a particular type cell theory - cell size ranges from 1 micrometer to 5 centimeters. Cells couldn"t be observed until microscopes invented in 17th century. Robert hooke - 1st to describe cells when he examined cork; named what he saw after the "small rooms" of monks.
