BIO 1140 Midterm: Revision 5 Mitochondria
4 Apr 2016
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What is mitophagy and how/why does it occur. Explain what is the role of mitochondria in a cell with regards to energy producion. Understand the importance of calcium (availability, storage // cellular funcions) Understand key concepts of cellular energeics in relaion to mitochondria (and chloroplasts) Response to stress oxidaive, drugs, toxicity etc An integral protein works with electricalchemical gradient of h+, facilitaing the passage through the channel. [hydrophobic part facing the membrane, hydrophilic region facing inside the channel] Enzymaic acivity hydrolyze atp / in reverse, phosphorylate adp into atp. Contain f0 and f1 unit (quaternary structure protein) Rushing of h+ due to the conc. gradient, causing the f1 to rotate, producing energy to phosphorylate adp to atp. Q: most of the potenial energy stored in atp that is available to drive cellular reacions is found in the ___ *not all proteins are enzyme, but all enzymes are protein (except ribozymes [rna]) Cells may have up to 3000 diferent enzymes.
