When the H+ concentration is significantly higher in the mitochondrial matrix than the intermembrane space, ATP

synthase would ____.



a. require an ion to stabilize it
b. no longer function properly
c. hydrolyze ATP to form ADP to pump protons out of the matrix
d. generate ATP to pump protons into the matrix
e. be uncoupled from the electron transport chain


ANSWER: c

Biology & Microbiology

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If a plant is exposed to a toxin that made the thylakoid membranes permeable to hydrogen ions, predict the impact of the toxin on each of the following:

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Which of the following type of microscopy would be most effective in visualizing the fine structure of viruses and cytoskeletal filaments 10–25 nanometers in diameter?

A. standard light microscopy B. phase-contrast light microscopy C. transmission electron microscopy D. darkfield light microscopy E. differential-interference microscopy

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The letter “A” in the above figure represents

a. humerus b. pectoral girdle c. skull d. sternum e. pelvic girdle

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All eukaryotes are diploid.

Answer the following statement true (T) or false (F)

Biology & Microbiology