What percentage of usable radiant energy entering a reaction site of photosynthesis is converted to potential energy (in $\%$)?

Which of the following methods is responsible for $ATP$ production by green plant cells in the presence of sunlight?

$I.$ Photosystem-$I$ is a photosynthetic pigment system located on the appressed part of grana and thylakoids.
$II.$ Photosystem-$II$ is a photosynthetic pigment system located on the non-appressed part of stroma only.
Identify whether the given statements are correct or incorrect and choose the correct option accordingly.

Which of the following carries out anoxygenic photosynthesis?

If a green plant is kept in the dark with proper ventilation,can this plant carry out photosynthesis? Can anything be given as a supplement to maintain its growth or survival?

Select the correct match.

Column-$I$	Column-$II$
$a.$ $OEC$	$(i)$ Primary e-acceptor
$b.$ $NADP$ reductase	$(ii)$ Photolysis of $H_2O$
$c.$ Succinyl $CoA$	$(iii)$ Outer surface of thylakoid membrane
$d.$ Phaeophytin	$(iv)$ Chlorophyll synthesis