1) Electron transport chain is located in which sub-cellular location?

i) Inner membrane of mitochondria (cristae)
ii) Cytoplasm
iii) Outer membrane of the mitochondria
iv) Plasma membrane
v) Mitochondrial matrix

2) If acetyl CoA and oxaloacetate unite at beginning of the Kreb’s cycle, but only oxaloacetate remains at the end of cycle, what was most probable the fate of carbons associated with acetyl CoA?

i) They are transferred to ATP
ii) They are shuttled into the electron transport chain
iii) They are incorporated into the new oxaloacetate molecule
iv) They are transferred to NAD+

3) When do cells switch from cellular respiration to fermentation?

i) When the proton-motive force runs down
ii) When NADH and FADH2 supplies are low
iii) When pyruvate is not available
iv) When electrons acceptors needed by ETC are not available

4) Place the molecules given below in the order in which they would appear in cellular respiration.

i) ATP Synthase
ii) Acetyl Coenzyme A
iii) Phosphofructokinase
iv) Coenzyme Q