Approximately $9/10$ $(85-90\%)$ of the total photosynthesis on Earth is carried out by:

Which of the following statements with regard to photosynthesis is/are correct?
$I$. In $C_{4}$-plants,the primary $CO_{2}$ acceptor is $PEP$.
$II$. In the photosynthetic process,$PS-II$ absorbs energy at or just below $680 \;nm$.
$III$. The pigment that is present in the Pigment System-$I$ is $P680$.

Select the incorrect statement.

Match the following.

Column-$I$	Column-$II$
$(p)$ Grana region of chloroplast	$(i)$ Krebs cycle
$(q)$ Stroma region of chloroplast	$(ii)$ Light reaction
$(r)$ Cytoplasm	$(iii)$ Dark reaction
$(s)$ Matrix of mitochondria	$(iv)$ Glycolysis

The energy stored in glucose basically comes from

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