Glycogen has α-1,4 and α-1,6 linkages α-1,6 linkages α-1,4 and β-1,6 linkage α-1,4 linkage TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not a mechanism for altering the flux of metabolites through the rate-determining step of a pathway? Genetic control of the enzyme concentration Diffusional coupling between adjacent active sites Allosteric control of the enzyme activity Covalent modification of the enzyme TRUE ANSWER : ? YOUR ANSWER : ?
The glycolytic pathway (glucose → 2 pyruvate) is found only in eukaryotes primarily in animals excluding particles in all living organisms only in yeast TRUE ANSWER : ? YOUR ANSWER : ?
During catabolism, only about 40% of the energy available from oxidizing glucose is used to synthesize ATP. Remaining 60% remains in the products of metabolism is used to reduce NADP is stored as fat. is lost as heat TRUE ANSWER : ? YOUR ANSWER : ?
For every one molecule of sugar glucose which is oxidized __________ molecule of pyruvic acid are produced. 4 3 1 2 TRUE ANSWER : ? YOUR ANSWER : ?
Glycolytic pathway regulation involves allosteric stimulation by ADP allosteric inhibition by ATP feedback, or product, inhibition by ATP All of these TRUE ANSWER : ? YOUR ANSWER : ?
In the glycogen synthase reaction, the precursor to glycogen is glucose-6-P UDP-glucose glucose-1-P UTP-glucose TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not true of glycolysis? ADP is phosphorylated to ATP via substrate level phosphorylation The pathway oxidizes two moles of NADH to NAD+ for each mole of glucose that enters The pathway does not require oxygen The pathway requires two moles of ATP to get started catabo-lizing each mole of glucose TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following regulates glycolysis steps? All of these Hexose kinase Pyruvate kinase Phosphofructokinase TRUE ANSWER : ? YOUR ANSWER : ?
The released energy obtained by oxidation of glucose is stored as ATP NAD+ a concentration gradient across a membrane ADP TRUE ANSWER : ? YOUR ANSWER : ?