Biology And Biomedical Sciences BIOL 2960 Lecture Notes - Lecture 1: Eukaryote, Bacteriophage, Archaea
25 Jan 2016
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Document Summary
Bacteriophage, or phage, are viruses that infect bacteria. In their simplest form, they turn bacteria into a phage factory, and force the bacteria to perform functions that will result in new virus production. Dna -> rna -> proteins -> cellular structure and function -> cells and organelles. Obtain raw materials and energy from the environment, transform them into new molecules, structures, do work (movement). Respond to changes in environment, to signals. Examples: bacteria exposed to new carbon source can change gene expression to utilize it for energy. Frogs will target flies and flies will try to fly away. Pass on genetic information to next generation. Cells can have specialized functions which evolved into diverse shapes, structures, etc. The cell is the basic unit of life. All living organisms are made up of cells. Organisms come from a common ancestor (organisms are remarkably similar at the molecular level: genetic code, basic metabolism) Interior of cell separated from its environment.
