The dehydrogenase α-ketoglutarate dehydrogenase (α-KDH) of the citric acid cycle is activated by which of the following? Select one alternative:elevated Ca2+ ions, high NAD+, elevated α-ketoglutarateelevated Ca2+ ions, high NADH + H+, low coenzyme-Adecreased Mg2+ ions, high NAD+, high succinyl coenzyme-Adecreased Ca2+ ions, high NADH + H+, high succinyl coenzyme-A

Which of the following is a citric acid cycle enzyme that produces a metabolite used directly in the electron transport chain?Malate dehydrogenaseGlyceraldehyde 3-phosphate dehydrogenaseAconitaseFumaraseIsocitrate dehydrogenaseA.I and V onlyB.II and V onlyC.III and IV onlyD.I, II, and V only

Which of the following downregulates pyruvate dehydrogenase by covalently modifying the enzyme complex? ATP Acetyl CoA AMP ADP Calcium ions

Increasing the concentration of NADPH will inhibit which of the following enzymes?Group of answer choicesA. Glucose 6-phosphate dehydrogenaseB. LactonaseC. TransaldolaseD. EpimeraseE. All the above

Select all of the following that are products of the citric acid cycle.Group of answer choicesADPNAD⁺acetyl CoAH₂ONADHCO₂pyruvateFADO₂FADH₂glucoseATPNext

Match the following & choose the correct option from those given below :-  Column-I   Column-II(A) Molecular oxygen (i) a-ketoglutaric acid(B) Electron acceptor (ii) Hydrogen acceptor(C) Pyruvate dehydrogenase (iii) Cytochrome C(D) Decarboxylation (iv) Acetyl CoA = ii,  B - iii, C - iv, D - iA = iii, B - iv, C - ii,  D - iA = ii,  B - i,   C - iii, D - ivA = iv, B - iii, C - i,   D - ii