1.) Certain complexes of the mitochondrial electron transport chain pump protons. Which of the following BEST describes the movement of protons in this situation?
a.) across the outer mitochondrial membrane, from the cytoplasm to the intermembrane space
b.) across the outer mitochondrial membrane, from the intermembrane space to the cytoplasm
c.) across the inner mitochondrial membrane, from the intermembrane space to the matrix
d.) across the inner mitochondrial membrane, from the matrix to the inter membrane space
2.) Which regulatory mechanism is activated when the overall energy availability of a cell is high?
a.) Citrate inhibits phosphofructokinase-1.
b.) ADP up-regulates phosphofructokinase-1.
c.) ATP inhibits phosphofructokinase-1.
d.) AMP up-regulates phosphofructokinase-1.
3.) Electron carriers are oxidized during which of the following reactions?
a.) glycolysis
b.) citric acid cycle
c.) electron transport chain
d.) the conversion of pyruvate to acetyl coA
e.) all of the above
1.) Certain complexes of the mitochondrial electron transport chain pump protons. Which of the following BEST describes the movement of protons in this situation?
a.) across the outer mitochondrial membrane, from the cytoplasm to the intermembrane space
b.) across the outer mitochondrial membrane, from the intermembrane space to the cytoplasm
c.) across the inner mitochondrial membrane, from the intermembrane space to the matrix
d.) across the inner mitochondrial membrane, from the matrix to the inter membrane space
2.) Which regulatory mechanism is activated when the overall energy availability of a cell is high?
a.) Citrate inhibits phosphofructokinase-1.
b.) ADP up-regulates phosphofructokinase-1.
c.) ATP inhibits phosphofructokinase-1.
d.) AMP up-regulates phosphofructokinase-1.
3.) Electron carriers are oxidized during which of the following reactions?
a.) glycolysis
b.) citric acid cycle
c.) electron transport chain
d.) the conversion of pyruvate to acetyl coA
e.) all of the above
