Oxygenic photosynthesis occurs in

Under conditions of constant illumination,the compensation period for a whole aquarium would be of infinite length when:

$I.$ Initial $CO_{2}$ acceptor
$II.$ Extent of photorespiration
$III.$ Enzyme catalyzing reaction that fixes $CO_{2}$
$IV.$ Presence of Calvin cycle
$V.$ Leaf anatomy
Which one does not differ in a $C_{3}$ and $C_{4}$ plant?

Which statement about photosynthesis is false?

When green algae are illuminated,motile aerobic bacteria usually accumulate near them. This is because,bacteria

Transpiration and Photosynthesis - a compromise. Give explanation.