Exam 4

Question 1

coenzyme

Answer 1

an organic cofactor

Question 2

cofactor

Answer 2

a non protein component which is required for enzyme activity.

Question 3

cosubstrate

Answer 3

a coenzyme which is loosely bound to an enzyme and is consumed during the reaction

Question 4

metabolite

Answer 4

a molecule which is either a substrate or product of a metabolic pathway

Question 5

metalloenzyme

Answer 5

an enzyme which contains one or more tightly bound metal ions which are essential for activity

Question 6

pathway

Answer 6

a series of enzyme reactions with starting and ending metabolites defined somewhat arbitrarily

Question 7

prosthetic group

Answer 7

a coenzyme which is tightly bound to an enzyme and which is not consumed by the reaction

Question 8

reducing power

Answer 8

a term which refers to several molecules which are very capable of supplying electrons to other molecules, through the electron transport system

Question 9

shunt

Answer 9

a series of metabolic or enzymatic steps which provide and alternative route within a pathway

Question 10

shuttle

Answer 10

a series of metabolic or enzymatic steps which transfer molecules or energy across membranes