BIOL 1090 Study Guide - Midterm Guide: Intermediate Filament, Nuclear Membrane, Nuclear Pore

77 views22 pages

Document Summary

What does it take to make life: information, chemistry. Earth"s atmosphere about 4 billion years ago was composed of nitrogen ammonia, methane, co2, h2o and h2. : gases (h20, ch4, nh3 and h2) + electrical spark- like lightning- The experiment made amino acids, urea, cyanide and formaldehyde compartmentalization. However there must be a membrane for life to start- called. The cell theory: cells are structural unit of life, all cell arise from preexisting cells, organisms are composed of more than 1 or more cells. Assimilate and utilize energy can reproduce carry out chemical reactions- enzymes: the sum total of these reactions is called the metabolism. Engage in mechanical activities respond to stimuli: receptors respond in a very specific way capable of self regulation. Two classes: prokaryotic, eukaryotic, bacteria, structurally simpler, protits, fungi, plants animals, more complex. Similar mechanism for synthesizing and inserting membrane proteins. Nucleus and cytoplasm desperated (nuclear envelope, pore structures) Complex chromosomes composed of dna and associated proteins.