HTHSCI 1LL3 Lecture Notes - Lecture 7: Lipid Bilayer, Electrochemical Gradient, Cell Membrane
24 Sep 2018
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Cell transport: 2 components to an electrochemical gradient. 01/31/17: concentration gradient, charge of the membrane. Interior of the cell is more negative, making it more likely for positive ions to enter: negative ions require energy to enter the cell, e. g. sodium, concentration gradient is the most important thing for uncharged molecules. *proteins all have half-lives before they are broken back down into amino acids to be used in dna instruction. Mitochondria: the powerhouse of the cell, site of most energy generation, outer and inner membrane (has cristae folds, tca (tricarboxylic acid) cycle and other oxidative pathways occur in the. Inner membrane is where the enzymes involved in cellular respiration are matrix: contain a small amount of dna, used to code for the enzymes and proteins needed within it (not all though) Hth sci 1ll3: reads the (cid:498)address(cid:499) of the amino acids to see if the particular acid belongs in the nucleus.
