Question of 90
Q.Draw a neat diagram of L.S. of a flower.
Goa GbshseGBSHSE Class 12 Board Exam 2019Subjective· 2mImportance★★★★★
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Start your 14-day free trial to unlock the full solution →This is a diagram-based question; below is the full labelled structure a correct L.S. of a flower should show, part by part, from the base upward.
Since this platform is text-based, here is the complete structure to draw/label, moving from the base of the flower to its tip:
- Pedicel — the stalk that attaches the flower to the main plant axis.
- Thalamus (receptacle) — the swollen tip of the pedicel on which all the floral whorls are borne.
- Calyx (sepals) — the outermost whorl, usually green, protecting the bud.
- Corolla (petals) — the next whorl, often brightly coloured, attracting pollinators.
- Androecium (stamens) — the male whorl; each stamen has a filament topped by a bilobed anther (each lobe with two microsporangia/pollen sacs), shown in longitudinal section with a central connective.
- Gynoecium (pistil/carpel) — the innermost, female whorl, shown centrally, differentiated (top to bottom) into:
- Stigma — the receptive tip for pollen germination.
- Style — the elongated stalk connecting stigma to ovary. …
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