Q340
How do the common weedicides act?
A.
Interfere with respiration
B.
Interfere with photosynthesis
AnswerC.
Defence mechanism is destroyed
D.
Causes wilting
Answer: Option B
Solution
Answer: Option B
Solution:
The common weedicides act by Interfering with photosynthesis.weedicides inhibit photosynthesis by binding to D1 proteins of the photosystem II complex in chloroplast thylakoid membranes.
Chemical substance binding at this protein blocks electron transport and stops CO2 fixation and production of energy needed for plant growth.