In the process of ________, ATP is synthesized when excited electrons from chlorophyll P700 pass through a series of electron carriers then return to chlorophyll P700.
A. photosynthesis
B. cyclic photophosphorylation
C. noncyclic photophosphorylation
D. acyclic photophosphorylation
Answer: B
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Most of the exchange surfaces of multicellular animals are lined with _____
A) connective tissue B) smooth muscle cells C) neural tissue D) epithelial tissue E) adipose tissue
How can a living cell increase the rate of a chemical reaction?
A. By lowering the pH of the cytoplasm. B. By raising the pH of the cytoplasm. C. By increasing the entropy of the reactants. D. By using a catalyst. E. By raising the temperature.
How does a cell surface receptor respond to the binding of a signaling molecule?
a. The cell surface receptor denatures. b. The signal is transduced through the plasma membrane and into the cell. c. The receptor relays a signal to another location on the cell surface. d. The cell surface receptor flips through the membrane to the inside of the cell. e. Polarization of the cell surface changes.
Which of the following does not normally pass from the glomerulus into Bowman's capsule during filtration?
a. glucose b. proteins c. sodium ions d. urea e. water