D Question 11 Select all the true statements about sequential versus concerted models of allostery, In stery, binding of the substrate on one end of an enzyme care a conformational change on the other end which propagates to another enzyme blesse binding of a second bitrate to the second ryme No contortional changes occur in either model In contestostery, the two form of the eye extinguiram because of conformational change independent of state binding concedording of the one of the form is tvorable but not to the other) and binding of the second strate enhanced on the two What roles do enzymes play in nature? They have a role in metabolic reactions They increase rates of reaction but do not shift the equilibrium formed between products and reactants They catalyze cellular processes All of the bove Enzymes are not only proteinaceous in nature, but some RNA molecules such as ribozymes can also be enzymes. True False How many classes of enzyme are there? O2 04 06 B