The number of mitochondria increases in cells of

Constantly dividing cells,both at the root apex and shoot apex,represent:

In the absence of light,which of the following increases?

If the stem grows towards sunlight and the root grows in the opposite direction,the movement of the stem is called:

Growth is measured by a variety of parameters,some of which are an increase in:
$a.$ Dry weight
$b.$ Fresh weight
$c.$ Volume
$d.$ Cell number

Which of the following is a characteristic of cells in the meristematic phase of growth?