unit 3 reading 19

Question 1

allosteric regulation

Answer 1

regulation of an enzyme/proteins activity by binding of a regulatory molecule at a site that is distinct from the active site (often = in a change in the proteins shape that affects the function of the active site)

Question 2

anabolic pathways

Answer 2

any set of chemical rxns that synthesizes large molecules from smaller ones (requires an input of energy)

Question 3

catabolic pathways

Answer 3

any set of chemical rxns that breaks down large complex molecules into smaller ones (releasing energy)

Question 4

competitive inhibition

Answer 4

inhibition of an enzymes ability to catalyze a chemical rxn via a nonreactant molecule that competes w/ the substratefor access to the active site

Question 5

feedback inhibition

Answer 5

type of control in which high concentrations of the final product of a metabolic pathway inhibit one one of the enzymes early in the pathway (form of negative feedback)

Question 6

metabolic pathway

Answer 6

a linked series of biochemical rxns that sequentially changes an initial substrate to form a final product (the product of one rxn is the substrate of the next rxn)