a) Draw a well-labelled diagram of Funaria representing gametophyte and sporophyte. (b) Explain sexual reproduction in brown algae.
GeneralClass 12AllAnswered 27 Mar 2026
Answer
(a) Funaria structure:
- Gametophyte: Leafy shoot with rhizoids, main axis, and leaves
- Sporophyte: Capsule, seta (emerging from gametophyte)
(b) Sexual reproduction in brown algae:
- Exhibits isogamous, anisogamous, or oogamous patterns
- Gametes are typically pyriform (pear-shaped) with two lateral flagella
- Fertilization may occur in water or within oogonium
- Resulting zygote develops into sporophyte
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