Multiple Choice
Why does rubisco make up about half of the protein content in a typical chloroplast?
A) most of the enzyme is in an oxidized state, waiting for the production of NADPH to reactivate it
B) it has an extremely high Km for CO2, thus a large number of enzymes increased the chance of substrate binding
C) since oxygen is also a substrate, those enzymes that bind oxygen are sequestered
D) it is a very inefficient enzyme, catalyzing only three reactions per second
E) none of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q13: Regeneration of the rubisco substrate, ribulose-1,5-bisphosphate involves
Q14: The electron pathway from water to NADP<sup>+</sup>,
Q15: In C<sub>4</sub> plants, CO<sub>2</sub> (as bicarbonate)
Q16: PSII oxidizes _.
Q17: How is ammonia toxic to many species?<br>I.
Q19: If carbon dioxide is used as a
Q20: Electrons are transferred from P680 to _,
Q21: Nitrogenase contains _, unusual electron carrier(s).<br>A) FeMo
Q22: Light-harvesting antennas gather photons and pass the
Q23: Electron transport through the cytochrome b<sub>6</sub>f complex