ICSE Class 8 Answered

Rhizome

Tuber

Stout, dorsoventrally flattened underground stem

Swollen, underground stem

Dorsoventrally flattened

Spherical, oblong or oval

Less stouter than tubers

More stouter than rhizomes

Nodes bear adventitious root on the lower side

Nodes do not bear roots

Buds are present in the axils of scaly leaves and also as terminal buds

Buds in the form of eyes present on the surface

Involvement and functioning of the reproductive organs

No involvement and functioning of the reproductive organs is

Gamete formation occurs

No gamete formation

Offspring produced possess new characters other than parents.

Offspring are identical to the parent.

Gamete formation occurs by means of meiotic division

Only mitotic division is seen in the development of new individuals

Seen in multicellular organisms, humans, animals, insects, etc.

Seen in prokaryotic microorganisms and some eukaryotic single-celled and multi-celled organisms.