Respiration in Plants Test - 3

Oligomycin acts on Complex V and inhibits ATP synthase by blocking the flow of protons through F_o subunit.

Aldol condensation is an irreversible reaction. Oxaloacetate is converted to citrate by citrate synthase in this reaction.

Fructose 1,6-biphosphate is an allosteric activator of pyruvate kinase through distinct interactions of binding and allostery at the enzyme's catalytic site.

Cytochrome c is a water soluble protein.

Conversion of isocitrate to oxalosuccinate generates NADH equivalent to 2.5 ATP.

Phosphoglycerate kinase catalyses the reversible transfer of a phosphate group from 1,3-bisphosphoglycerate (1,3-BPG) to ADP, producing 3-phosphoglycerate (3-PG) and ATP.

Enzyme succinyl CoA synthase utilises a histidine residue to remove phosphate group from succinyl phosphate and to generate succinate.

Phosphoenolpyruvic acid is used by the bacteria for phosphotransferase system. It is a distinct method used by bacteria for sugar uptake.

Magnesium acts as a cofactor for phosphoglycerate kinase and phosphofructokinase. Phosphoglycerate kinase is an enzyme that catalyses the reversible transfer of a phosphate group from 1,3-bisphosphoglycerate to ADP producing 3-phosphoglycerate and ATP. Phosphofructokinase (PFK) catalyses the ATP-dependent phosphorylation to convert fructose-6-phosphate into fructose 1,6-bisphosphate and ADP.

Citrate inhibits phosphofructokinase, an enzyme involved in glycolysis that catalyses formation of fructose 1,6-bisphosphate. This prevents a constant high rate of flux when there is an accumulation of citrate and a decrease in substrate for the enzyme.