Multiple Choice
Photosystem I (PSI) and photosystem II (PSII) have similarities and differences.Which statement comparing these two systems is false?
A) PSI and PSII have reaction center chlorophylls that absorb light at different wavelengths.
B) Both PSI and PSII reaction centers draw electrons from electron donors after they are excited by photons and oxidized.
C) The excited chlorophyll (Chl*) of a PSII reaction center loses an electron and is re-reduced by water, while the Chl* of a PSI reaction center passes its electrons via intermediates to NADP+.
D) The energy trapped in the excited states of both PSI and PSII is used to reduce NADP+.
E) PSII and PSI are both located in the thylakoid membrane along with the electron transport chain.
Correct Answer:

Verified
Correct Answer:
Verified
Q18: The Calvin cycle uses all of the
Q19: Refer to the Venn diagram below. <img
Q20: The chemiosmotic hypothesis states that the energy
Q21: During CO<sub>2</sub> fixation, CO<sub>2</sub> combines with<br>A) NADPH.<br>B)
Q22: The molecule(s) representing the net energy output
Q24: The equation below describes a photosynthetic reaction.
Q25: In noncyclic photophosphorylation, electrons flow in a
Q26: When white light strikes a blue pigment,
Q27: Succulents, pineapples, and many cacti are which
Q28: Corn, Bermuda grass, and sugarcane are examples