The electron transport chain pumps H⁺ ions into which location of the mitochondria?
a) Mitochondrial intermembrane space. 
b) Mitochondrial matrix.
c)  Mitochondrial inner membrane.
d) The H⁺ ions are pumped out of the mitochondria.

Write your own definition of the chemiosmotic mechanism of ATP generation. On Figure 5.16, mark the following using the appropriate letter:

a. the acidic side of the membrane

b. the side with a positive electrical charge

c. potential energy

d. kinetic energy

The use of a proton motive force to generate ATP is __________.

Chemiosmotic creation of ATP is driven by:

a) Phosphate transfer through the plasma membrane.

b) Potential energy of the H⁺ concentration gradient created by the electron transport chain.

c) Substrate-level phosphorylation in the mitochondrial matrix.

d) Large quantities of ADP in the mitochondrial matrix.

Write your own definition of the chemiosmotic mechanism of ATP generation. On Figure 5.16, mark the following using the appropriate letter:

a. the acidic side of the membrane

b. the side with a positive electrical charge

c. potential energy

d. kinetic energy