Govt. Exams
Entrance Exams
Rhizoids are root-like structures that anchor bryophytes to the substrate and facilitate absorption of water and minerals.
Mosses exhibit alternation of generations with the gametophyte (haploid) being the dominant, photosynthetic generation, while sporophyte is dependent.
Bryophytes lack true roots, stems, and vascular tissue, while pteridophytes possess true vascular tissue (xylem and phloem) and roots.
Gymnosperms (Conifers, Cycads, Ginkgo) have seeds exposed on cone scales without floral structures or fruit coverings.
A sorus (plural: sori) is a cluster of sporangia found on the underside of fern fronds, typically covered by an indusium.
In bryophytes, the gametophyte (moss plant) is dominant and independent, while the sporophyte depends on it for nutrition.
Bryophytes need water for fertilization as their sperms are motile. This characteristic links them to aquatic plants while they live on land.
Plants are autotrophic and perform photosynthesis. Heterotrophic nutrition is characteristic of animals and fungi, not plants.
