. Select the correct statement w.r.t. conditions
required for growth
(1) Oxygen provides the medium for enzymatic
activities needed for growth
(2) Water helps in releasing metabolic energy
essential for growth activities
(3) Turgidity of cells help in extension growth
(4) Only microelements are required by plants for
the synthesis of protoplasm and act as source
of energy

Hi Pranjal,
Please find below the solution to the asked query:

The correct statement is (3).
Turgidity of cells helps in extension growth. The cells grow in size by enlargement that requires water.

The other correct statements will be 

1. Water provides the medium for enzymatic activities needed for growth.
2. Oxygen helps in releasing metabolic energy essential for growth activities.
3. Both macro and micro nutrients are essential for the synthesis of protoplasm and act as source of energy.

Hope this information will clear your doubts about the conditions necessary for growth.
If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.

Regards