Which one of the following occurs maximum during the exponential growth phase in plants?

Growth in plants is measured by the increase in
$I.$ Fresh weight. $II.$ Dry weight
$III.$ Length,area and volume $IV.$ Cell number
Choose the correct option.

Deposition of new materials inside the cell wall of cells starts in

Which phase of a sigmoid curve explains the initial phase of growth when growth rate is very slow?

Growth at the cellular level is the increase in the amount of:

Maximum growth in roots occurs: