What is Gymnosperms?

Question

What is the typical hapit for Gymnosperms ?

is it multicellular or unicellualr?

Presence or absence of cell walls and main constituent of cell walls(cellulose or chitin?

What are the common names given to member of each of them?

do they have root ,stem, and leaves?

Typical motile or sessile?

do they have vascular tissue?how do they transport water?

Answer 1

Gymnosperms ("naked seed") Division Coniferophyta, are non-flowering plants such as pine & Sequoia trees, and cycads.  Angiosperms (Division Anthophyta) are the flowering plants/trees.  Gymnosperms are often referred to as conifers.

All are multicellular, eukaryotic organisms.  

All contain cell walls that enclose a plasma membrane.  The cell walls are composed mainly of cellulose and lignin.  (Chitin is found in cell walls of fungi and in the exoskeletons of insects.)

All contain roots, stems, & leaves (sometimes refered to as "needles" when talking about pine trees.)

They are all sessile, having no truly motile stage in their life cycle.  

They do have true vascular tissue [as opposed to non-vascular plants such as the Bryophytes (mosses), & Hepatophytes (liverworts)].

They transport water the same way that all vascular plants do:  water is transported upward from the roots to the shoots via xylem.  Transpiration, the evaporation of water from the stomata of the leaves, aids in pulling water upward by the principles of adhesion-cohesion.  Tracheids and vessel elements also play a role.

-thrashmikki