The visible light wavelengths that are most effective in photosynthesis are.......

The first electron acceptor molecule from $P_{700}$ to $NADP^+$ is considered to be .........

Assertion : Non-cyclic photophosphorylation is also called as $Z$-scheme.
Reason : When all the carriers are placed in a sequence on a redox potential scale,it gives its characteristic shape.

The following $(I-VI)$ are the main steps of chemiosmotic $ATP$ synthesis in the light reaction. Arrange them in the correct order:
$I$. $H^+$ concentration gradient established
$II$. $H^+$ diffuses through $ATP$ synthase
$III$. Carriers use energy from electrons to move $H^+$ across the membrane
$IV$. Electrons from $PS-II$ pass along the electron transport chain
$V$. Light excites electrons in $PS-II$
$VI$. Energy of $H^+$ flow is used by $ATP$ synthase to make $ATP$

Which element is present in the $OEC$ (Oxygen Evolving Complex)?

The first event in photosynthesis is