B1 Exam 2 Practice 2

Which reaction involves oxidative decarboxylation?

• pyruvate to lactate

• pyruvate to acetyl-CoA

• pyruvate to oxaloacetate

• pyruvate to alanine

Which of the following decreases oxidation of acetyl-CoA by the TCA?

• high acetyl-CoA/CoA ratio

• low ATP/ADP ratio

• high availability of calcium

• high NADH/NAD⁺ ratio

Tags

NGSS.HS-LS1-7

Which enzyme is NOT inhibited by high [NADH]?

• succinate dehydrogenase

• α-ketoglutarate dehydrogenase complex

• isocitrate dehydrogenase

• pyruvate dehydrogenase

Tags

NGSS.HS-LS1-7

Which of the following has the greatest affinity for electrons?

• oxygen

• CoQ

• NAD⁺

• FAD

Inhibitor of complex IV in the ETC:

• rotenone

• CO

• 2,4-DNP

• oligomycin

Tags

NGSS.HS-LS1-7

Which of the following is a reversible reaction in the TCA?

• α-ketoglutarate to succinyl-CoA

• isocitrate to α-ketoglutarate

• isocitrate to citrate

• oxaloacetate to citrate

Which reaction does NOT involve decarboxylation?

• pyruvate to oxaloacetate

• pyruvate to acetyl-CoA

• α-ketoglutarte to succinyl-CoA

• oxaloacetate to PEP

Which is NOT a coenzyme for the PDH complex?

• TPP

• FAD

• NAD⁺

• biotin

Fructose-2,6-bisphosphate:

• activates fructose-1,6-bisphosphatase

• is uptaken into the cell when adrenergic epinephrine is released

• activates PFK-1

• it is made when glucagon is present

Which reaction is involved in hydration?

• complex IV of the ETC

• fumarate to malate

• 1,3-BPG to 3PG

• G3P to 1,3-BPG