BIO 161 Lecture Notes - Lecture 3: Cell Nucleus, Cellular Respiration, Chemical Polarity
Document Summary
Humans: physiology overview: multiple systems working together in the human body. Breathe in o2, goes into lungs, gets transported into respiratory system. Cells take in oxygen and nutrients for energy. Basic chemistry: atoms, elements, molecules, and compounds, water & its properties. Major molecules: carbohydrates: sugars and starches (monosaccharides, disaccharides, polysaccharides, lipids, protein, nucleic acid. All matter is made of atoms, each containing a nucleus with protons and neutrons surrounded by a cloud of electrons: atoms in basic state have no charge. H - part of all organic molecules and of water. O- part of water and most organic molecules, also molecular oxygen. C - backbone of all organic molecules. N - component of proteins and nucleic acid. Ca - bone, action of nerves and muscles. P - part of cell membranes and of energy storage molecules and a constituent of bone.
