Stems modified into flat green organs performing the functions of leaves are known
Correct answer: A. Phylloclades
- A. Phylloclades
- B. Scales
- C. Cladodes
- D. Phyllodes
Explanation
(a) : Phylloclades are flattened green stems which have taken over the function of photosynthesis while cladodes are only the branches of stem that are modified to take over the function of leaves. Cladodes may not be flattened as in Ruscus aculeatus, cladodes are leaflike with spiny tip whereas in Asparagus, they are slightly flattened, fleshy, straight or curved pointed structures which develop in clusters in the axil of scale leaves.
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About Kingdom Plantae
Plants are multicellular, photosynthetic eukaryotes with cellulose cell walls, chloroplasts and large vacuoles. Coverage includes alternation of generations, vascular and non-vascular plants, seedless and seed-producing groups, gymnosperms and angiosperms, and the distinction between monocot and dicot features.
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