Take Home Essay 4 - Essay IV Living cells produce globular...

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Essay IV Living cells produce globular proteins called enzymes to act as activators or accelerators for metabolic reactions. Enzymes make it possible for biochemical reactions to occur with a lower initial energy requirement. This way, cells can perform more activities at a relatively lower temperature and less energy expenditure. Enzymes are not changed after each reaction. They can perform their enzymatic functions repeatedly. The substrate is the substance on which enzymes act on to create products. Enzymes are substrate specific because of their functional shapes. Their folded conformation creates an area called active site. The different sequence of amino acids and their nature in the active site determines what substrates can bind with the enzyme. Even when other substrates are present, only those substrates with complementary shape can bind to the enzyme’s active site. Sometimes when substrates bind with an enzyme, the enzyme’s active site changes shape slightly. This change in active site is
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This note was uploaded on 03/03/2010 for the course AP BIO AP BIO taught by Professor Apbioteacher during the Spring '09 term at École Normale Supérieure.

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Take Home Essay 4 - Essay IV Living cells produce globular...

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