In mitochondria, an electron transport chain pumps protons from the matrix into the intermembrane space, whereas in chloroplasts, an electron transport chain pumps protons from the ________.
a. the stroma into the cytosol.
b. the stroma into the thylakoid space.
c. the matrix into the stroma.
d. the thylakoid space to into the stroma.
e. the intermembrane space into the stroma.
Answer: b. the stroma into the thylakoid space.
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A. Abscisic acid B. Gibberellic acid C. Jasmonic acid D. Salicylic acid E. Ethylene
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a. humans and pigs b. moths c. tuna d. yeast
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