Latest questions in this category.
George Bentham and Joseph Dalton Hooker proposed the natural classification system for flowering plants, considering both external and internal features.
Ref: NCERT Class 11 Biology Chapter 3: Plant Kingdom Angiosperms and Plant Life Cycles - Alternation of Generations
The plant body of liverworts, such as Marchantia, is thalloid and dorsiventral, appressed to the substrate.
Ref: NCERT Class 11 Biology Chapter 3: Plant Kingdom Angiosperms and Plant Life Cycles - Alternation of Generations
Gymnosperms have exposed ovules, functionally similar to angiosperm ovules but without an ovary wall.
Ref: NCERT Class 11 Biology Chapter 3: Plant Kingdom Angiosperms and Plant Life Cycles - Alternation of Generations
The sporophyte in liverworts is simple, differentiated into foot, seta, and capsule, not a complex leafy structure.
Ref: NCERT Class 11 Biology Chapter 3: Plant Kingdom Angiosperms and Plant Life Cycles - Alternation of Generations
The gametophyte in pteridophytes is a small, free-living structure called prothallus.
Ref: NCERT Class 11 Biology Chapter 3: Plant Kingdom Angiosperms and Plant Life Cycles - Alternation of Generations
The primary endosperm nucleus in angiosperms is triploid (3n) due to the fusion of a male gamete with two polar nuclei.
Ref: NCERT Class 11 Biology Chapter 3: Plant Kingdom Angiosperms and Plant Life Cycles - Alternation of Generations
The gametophyte in bryophytes is thallus-like and may possess root-like, leaf-like, or stem-like structures.
Ref: NCERT Class 11 Biology Chapter 3: Plant Kingdom Angiosperms and Plant Life Cycles - Alternation of Generations
In pteridophytes, the spore germinates to form the gametophyte (prothallus).
Ref: NCERT Class 11 Biology Chapter 3: Plant Kingdom Angiosperms and Plant Life Cycles - Alternation of Generations
The megasporophyll in gymnosperms bears ovules, similar to how an ovary bears ovules in angiosperms.
Ref: NCERT Class 11 Biology Chapter 3: Plant Kingdom Angiosperms and Plant Life Cycles - Alternation of Generations
The gametophyte is the dominant, photosynthetically active, and independent phase in bryophytes.
Ref: NCERT Class 11 Biology Chapter 3: Plant Kingdom Angiosperms and Plant Life Cycles - Alternation of Generations
The protonema is the first stage in moss development, emerging directly from the spore.
Ref: NCERT Class 11 Biology Chapter 3: Plant Kingdom Angiosperms and Plant Life Cycles - Alternation of Generations
The sporophyte in liverworts is not free-living; it is attached to the gametophyte and derives nourishment from it.
Ref: NCERT Class 11 Biology Chapter 3: Plant Kingdom Angiosperms and Plant Life Cycles - Alternation of Generations
