Question

meristematic cells have prominent nucleus& dense cytoplasm but lack vacuoles

Answer 1

Meristematic cells have a prominent nucleus and a dense cytoplasm but lack a vacuole, this is so because meristematic cells have an ability to divide and form new cell. Vacuoles have a function of storing food and other nutrients that a cell might need to survive. But, there is no point in storing food and other nutrients when the cell has to divide.

Answer 2

Vacuoles function is to store food but meristematic cells are unable to produce their own food they depend for their nourishment on the other cells for which they have high number of plasmodesmata .
the cells consists of prominent nucleus and dense cytoplasm so that they can divide at a very fast rate and can also show high power of regeneration.