biochemistry Flashcards
ATP is an exergonic process.
true
Vitamin B is water soluble.
true
The nonoxidative phase is the reversible phase of the PPP.
true
Uncompetitive inhibitors have no change in the Km.
false
Vmax is directly proportional to the concentration of enzyme.
true
Fatty acid synthesis requires the citrate shuttle.
true
A suicide inhibitor binds to the active site.
false
The citric acid cycle occurs in the mitochondrial matrix.
true
Low-density lipoprotein moves cholesterol from the tissues to the liver.
false
Michaelis-Menten kinetics, what order of kinetics is it?
zero order
A scientist is testing a particular enzyme inhibitor. They find that the inhibitor binds to the active site. What describes this?
competitive inhibition
Enzymes help catalyze reactions by lowering the activation energy. The process in which the final product of an enzymatic reaction prevents earlier steps from continuing when enough final product has been formed is known as:
feedback inhibition
Which property does isoelectric focusing exploit in order to separate molecules?
charges
What is the rate-limiting step of the pentose phosphate pathway?
glucose-6 phostphate deg.
When does nondisjunction occur, for homologous chromosomes to fail to separate?
meiosis
