Apical dominance is caused by

List $- I$	List $- II$
$(a)$ $S$ phase	$(i)$ Proteins are synthesized
$(b)$ $G_2$ phase	$(ii)$ Inactive phase
$(c)$ Quiescent stage	$(iii)$ Interval between mitosis and initiation of $DNA$ replication
$(d)$ $\mathrm{G}_{1}$ phase	$(iv)$ $DNA$ replication

Choose the correct answer from the options given below.

$(a) -(b) -(c)- (d)$

$I.$The portion of the spectrum between $300-500 \;nm$ is also referred to as Photosynthetically Active Radiation $(PAR)$.

$II.$ Magnesium, calcium and chloride ions play prominent roles in the photolysis of water:

$III.$ In cyclic photophosphorylation, oxygen is not released (as there is no photolysis of water) and $NADPH$ is also not produced.

STD 11 - 13. Plant growth and development — NEET STD 11 Science — Question