A herbicide that blocks electron transport from PS-II t
| A herbicide that blocks electron transport from PS-II to PS-I by inhibiting electron flow between PSII and plastoquinone is______
A. DCMU
B. Paraquat
C. DCPIP
D. None of these
Please scroll down to see the correct answer and solution guide.
Right Answer is: A
SOLUTION
DCMU is a herbicide that acts as a potent inhibitor of PS-II. It inhibits the flow of electrons from PSII to plastoquinone. Paraquat is also a herbicide which inhibits PS-I by producing super oxides. DCPIP is a dye used to measure the rate of photosynthesis. Hence, the answer is DCMU.