Question

characteristics of stem and leaf​

Answer 1

Characteristics of Stem:-

The stem bears nodes and internodes. The regions of the stem where leaves are born are called nodes while internodes are the portions between two nodes.The stem bears floral buds (terminal or axillary) that grow into flowers. The young stem is green in colour and thus it is photosynthetic.

Characteristics of Leaves:-

The leaves do not possess any apical bud or a regular growing point. A leaf has three main parts – Leaf base, petiole and leaf lamina. In addition, it may possess two lateral outgrowths of the leaf base, called stipules. The leaf lamina is traversed by prominent vascular strands, called veins.

Hope it helps u....!!!

Answer 2

Stem

(i) Stem develops from the plumule of embryo,

(ii) Stem is generally the ascending; part of the plant axis,

(iii) It bears a terminal bud for growth in length

(iv) The stem is differ­entiated into nodes and internodes.

(v) The stem nodes possess dissimilar appendages called leaves,

(vi) The young stem is green and capable of performing photosynthesis,

(vii) In the mature state it bears flowers and fruits,

(viii) Leaves and stem branches develop exog­enously.

(ix) Stem exposes leaves, flowers and fruits to their most suitable position in the aerial environment for optimum function,

(x) Hair, if present, are commonly multicellular.

(xi) Stems are usually positively phototropic, negatively geotropic and negatively hydrotropic.

I hope my answer would be helpful to you...

Pls rate and tell.