UNE Biochemistry Midterm Study Bank Questions and Answers 100% Pass

UNE Biochemistry Midterm Study Bank Questions and Answers 100% Pass Succinate is a substrate for which complex in the electron transport chain? a.) Complex 1 (NADH-1 oxidoreductase) b.) Complex IV (Cyt c oxidase) c.) Complex V (ATP synthase) d.) complex II (Succinate-Q reductase) Complex II (succinate-Q reductase) (D) Which of the following would be consistent with an exergonic reaction? a.) ΔS would be negative b.) ΔG would be negative c.) ΔS would be positive d.)ΔG would be positive ΔG would be negative (B) Which of the following describes the malate-aspartate shuttle system? a.) Carries NADH from the cytoplasm directly into the mitochondria b.) Generates 2.5 molecules of ATP in mitochondria per each NADH from glycolysis c.) Moves NADH from the mitochondria to the cytoplasm d.) Relies on malate dehydrogenase in the inner mitochondrial membrane e.) Requires reduction of pyruvate to lactate for oxidizing NADH Generates 2.5 molecules of ATP in mitochondria per each NADH from glycolysis (B) ATP is a high energy molecule that is often hydrolyzed during reactions. The energy within ATP is stored primarily in which of the following components of the molecule? a.) In the high energy phosphate bonds b.) In the adenine base c.) In the D-ribose group In the high energy phosphate bonds (A) Dinitrophenol is an uncoupler of the electron transport chain. The addition of dinitrophenol will have which of the following impacts? a.) Decrease the pH of the intermembrane space b.) Increase oxygen consumption c.) Decrease oxidation of NADH d.) Increase ATP production Increase oxygen consumption (B) In the malate aspartate shuttle, glutamate is converted to _______ in the mitochondria while aspartate is converted to _______ in the cytosol. a.) Oxaloacetate; malate b.) alpha-ketoglutarate; oxaloacetate c.) Oxaloacetate; glutamate d.) Aspartate;