Besides water and light,which is more essential as a raw material for food formation?

Suspension of isolated thylakoids in a culture medium containing $CO_2$ and $H_2O$ does not produce hexose due to the absence of which of the following?

Identify the incorrect statement with respect to Calvin cycle.

During photosynthesis,the oxygen in glucose is derived from which of the following?

How much energy in terms of $ATP$ equivalents is consumed in the photosynthetic production of a mole of hexose?

Identify the correct sequence of enzymes given below which participate in the regeneration phase of the Calvin cycle.
$I.$ Ribulose-$5$-phosphate isomerase
$II.$ Ribulose-$5$-phosphate epimerase
$III.$ Transketolase
$IV.$ Triose phosphate isomerase