BIOLOGY 1B Lecture Notes - Lecture 2: Mitosis, Meiosis, Plasmid
Document Summary
Kings play chess on fine green sand hierarchy of linnaeus. For linnaeus, life became hierarchical (tree of life) Bacteria have been the longest and have been one of the first organisms to be evolved. Archaea and eukarya share a more recent common ancestor. 3 types of bacteria: cocci - spherical, bacilli - rod shaped, spiral - helical. Kids can only eat honey after age 1 because bacteria causes paralysis of lungs same bacteria causes botox paralyzes muscles. Built by cell wall and cell membrane enclosing a cytoplasm. Layer between cell wall and membrane called peptidoglycan polysaccharide. Bacteria are unique because they have peptidoglycan. Dna is a coagulated mass and not a double helix no membrane either just floats within cytoplasm. Bacteria reproduce by simple division binary fission. 1 micrometer = 1 millionth of a meter size of prokaryotes. Atoms < small molecules < proteins < viruses < prokaryotes < eukaryotes. Occupation of thermal or highly saline areas.
