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Unformatted text preview: Phosphorylation-the transfer of phosphate groups by molecules-most cellular work depends upon ATP energizing other molecule by phosphorylating them Types of Cellular work:-chemical: reactants provide energy to drive the endergonic synthesis of products-mechanical: transfer of phosphate groups causes protein to change shape and pull on actin filaments (muscle cell contraction)-transport: active transport of substances across a cell membrane ( require ATP) Energy of Activation (Ea)-an amount of energy needed to get activation going. Also known as the energy barrier Enzymes **ending in ase is usually and enzyme-protein molecule that is biological catalyst. Increasing rate of reaction without itself being changed.-lowers the energy barrier-it has a place called active site , a grove with a specific shape-it looks for a particular function that will fit in active site...
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This note was uploaded on 01/10/2012 for the course BIOLOGY 01:119:101 taught by Professor Martind. during the Fall '09 term at Rutgers.
- Fall '09