A diet to die for

A diet to die for

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Multiple Choice

Choose the description below that best completes the statement "oxidative phosphorylation is the process in mitochondria by which_____"

• electrons reduce oxygen to water and this causes ATP to be made

• glycolysis produces more ATP than is needed to activate it's pathway

• oxygen is used to cause phosphorylation of biological molecules

• synthesis of ATP is dependent on the passage of electrons through the electron transport chain

Multiple Choice

You are doing an experiment to test the effects of adding cyanide. As you know, cyanide is an inhibitor of the last protein in the ETC (cytochrome c oxidase). You examine the effect of oxygen consumption and the production of ATP. What do you predict?

• oxygen will not be consumed and no ATP will be produced

• oxygen will be consumed and no ATP will be produced

• oxygen will not be consumed but ATP will be produced

• oxygen will be consumed and ATP will be produced

Multiple Choice

You are doing another experiment involving mitochondria. You add oligomycin, an antibiotic inhibitor of ATP synthase. You examine the effect on oxygen consumption and the production of ATP. What do you predict?

• oxygen will not be consumed and no ATP will be produced

• oxygen will be consumed, but no ATP will be produced

• oxygen will not be consumed, but ATP will be produced

• oxygen will be consumed and ATP will be produced

Multiple Choice

You are doing an experiment on mitochondria. You add oligomycin, an inhibitor of ATP synthase. You also add the compound DNP. What do you predict? HINT: what happened when people took this as a weight-loss drug?

• oxygen will not be consumed, and no ATP will be produced

• oxygen will be consumed but no ATP will be produced

• oxygen will not be consumed, but ATP will be produced

• oxygen will be consumed, and ATP will be produced

Multiple Choice

You have created some artificial membrane vesicles that have a higher pH inside than the solution outside. To sample 1 of these vesicles, you add a little HCl, and to the other (sample 2) you add some DNP with equivalent acidity and then you measure the internal pH of the vesicles. What do you predict?

• internal pH will be lowered for both 1 and 2

• internal pH will be unchanged for both 1 and 2

• internal pH will be unchanged for 1 but lowered for 2

• internal pH will be lowered for 1 but unchanged for 2