Which one of the following hormones is not found in plants?

In which of the following respects do plant hormones differ from enzymes?

Plant growth substances $(PGS)$ have innumerable practical applications. Name the $PGS$ you should use to:
$(a)$ Increase yield of sugarcane.
$(b)$ Promote lateral shoot growth.
$(c)$ Cause sprouting of potato tuber.
$(d)$ Inhibit seed germination.

The movement of plant organs in response to light is called:

Match the following.

Column-$I$	Column-$II$
$A$. Ethephon	$P$. Inhibits seed germination
$B$. $ABA$	$Q$. They all are acidic
$C$. $GA$	$R$. Help overcome the apical dominance
	$S$. Hastens fruit ripening in tomatoes and apples

Ratio of . . . . . . and . . . . . . plant hormones and their interactions control the morphogenic differentiation.