Which conformation of the F1 subunit of ATP Synthase releases ATP?   A. αΒ-ADP   B. αΒ-ATP   C. αΒ-Empty   D. None of the above

ATP inhibits glycolysis by binding to an allosteric site on the last enzyme In the pathway, thus ATP is a... A. Competitive inhibitor B. Noncompetitive inhibitor C. Feedback inhibitor D. More than one of these answers. Please give the rationale as to why

An uncoupler ___________ Select one: a. decreases ATP levels by destroying the proton gradient in mitochondria b. increases ATP levels by creating a protein gradient in mitochondria c. decreases the amount of heat generated during respiration d. inhibits the Na/K pump by de-coupling phosphorylation and transport e. inhibits the Na/K pump by destroying concentration gradients of sodium and potassium

What is the fate of an acid hydrolase that does not get tagged with mannose-6-phosphate in the Golgi? A. returned to the ER B. secreted out of the cell C. transported to the lysosome O D. degraded by the proteasome

Production of ATP can occur when creatine kinase takes a phosphate from _______________ and phosphorylates ADP into ATP.  This process is known as ________________ and generates _____ ATP each time this process occurs.     A. creatine phosphate; direct phosphorylation; 1     B. creatine; ATP hydrolysis; 1     C. creatine phosphate; direct phosphorylation; 32     D. creatine phosphate; ATP hydrolysis; 32     E. creatine; direct phosphorylation; 2

In Entner-Doudoroff pathway a. glucose is converted to 3 pyruvates b. only 1 ATP is produced c. I NADH and 1 FADH2 are produced d. occurs in all types of bacteria e. a and b O a. a O b. b О с.с O d. d е. е

Mechanistically, why does the reaction PEP+ADP+H⁺ ⇌ Pyruvate + ATP release so much energy? a. PEP has a higher phosphoryl group transfer potential than ATP b. PEP is "stuck" in the unstable enol form c. all answers d. none of the above

Select the correct pairing of a structure and the process it is associated with.    A. Schwann cells……..muscle contraction  B. ATP synthase…..electron transport chain  C. H+ pump……facilitated diffusion  D. Mitochondria…..protein synthesis

dentify a metabolic pathway associated with the enzymes localized in the mitochondrial matrix.   a. the citric acid cycle   b. the oxidative phosphorylation pathway   c. the citric acid cycle and the oxidative phosphorylation pathway   d. none of these

Which statement is TRUE regarding the glycolytic pathway? a. It includes five phosphate transfer reactions. b. All of the enzymes that are regulated by product inhibition. c. It includes reactions catalyzed by three isomerase enzymes. d. All of the enzymes are regulated by high ATP concentratrion