BIOC19H3 Chapter Notes - Chapter 6-11: Chloroplast Membrane, Thylakoid, Intermembrane Space
Document Summary
Can divide in the cell: mitochondrial ssion , powerhouse of the cell. Site of aerobic respiration: utilizing oxygen to extract energy from macromolecules (primarily glucose) and converting it to. We use 2 x 1026 molecules of atp/day. Energy is released when atp is hydrolyzed to adp muscle cells, liver cells, fat cells, plant cells & sperm. Contain porin (bacteria protein) proteins: large channels. Inner membrane (cristae): has high surface area for more atp made. Cristae: many thin folds to increase surface area. 75% protein: 25 lipid ration (lipid = cardiolipin [also found in bacterial membranes]) Very impermeable: requires channels & pumps for movement across. 100 different proteins: including proteins in etc. Mitochondrial function requires 3,000 proteins, therefore mitochondria function requires nuclear gene products, and these proteins must imported (targeted) to mitochondria. Protein translocons are also involved in import of proteins into mitochondrias phagocytosis of photosynthetic bacteria.