Plants are killed in water by frost due to:

One hormone hastens the maturity period in juvenile conifers,a second hormone controls xylem differentiation,while the third increases the tolerance of plants to various stresses. They are respectively:

Identify the incorrect statement/s.
$I$. Kinetin is a derivative of adenine which is a pyrimidine.
$II$. The technique of decapitation is widely used in tea plantations.
$III$. Ethylene is a gaseous plant hormone.
$IV$. Use of $GA$ hastens the malting process in brewing industry.
$V$. $ABA$ is a growth promoter.

You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?

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

Match List-$I$ with List-$II$:

List-$I$ (Growth Regulator)	List-$II$ (Function/Effect)
$A$. $2,4-D$	$I$. Brewing industry
$B$. $GA_3$	$II$. Stimulation of stomatal closure
$C$. Kinetin	$III$. Herbicide
$D$. $ABA$	$IV$. Nutrient mobilisation

Choose the correct answer from the options given below: