Stem Notes: Definitions & Explanations PDF | Download eBooks
Study Stem lecture notes PDF with biology definitions and explanation to study “What is Stem?”. Study stem explanation with biology terms to review biology course for online degree programs.
Stem Definition:
A stem is a plant organ bearing leaves and buds.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Stem Notes:
A stem is one of two main structural axes of a vascular plant, the other being the root. The stem is normally divided into nodes and internodes; The nodes hold one or more leaves, as well as buds which can grow into branches (with leaves, conifer cones, or inflorescences (flowers)). Adventitious roots may also be produced from the nodes. The internodes distance one node from another. Its chief function is to elongate and orient the shoot in a way that maximizes photosynthesis by the leaves. Another function of stems is to elevate reproductive structures, thereby facilitating the dispersal of pollen and fruit. Green stems may also perform a limited amount of photosynthesis.
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