answer sporophyte or gametophyte which generation is a pine

answer sporophyte or gametophyte?

which generation is a pine tree?

pine cone?

deciduous leafy plant?

flower?

Solution

pine tree-sporophyte.Pine trees are conifers (cone bearing) and carry both male and female sporophylls on the same mature sporophyte.Therefore,they are monoecious plants.

pine cone -gametophyte.In the male cones(staminate cones),the microsporocytes give rise to pollen grains by meiosis.Female cones (ovulate cones) contain two ovules per scale.One megaspore mother cell undergoes meiosis in each ovule.Three of the four cells break down leaving only a single surviving cell which will develop into a female multicellular gametophyte.It encloses archegonia.Each archegonium contains an egg.

deciduous leafy plants-sporophyte

flower -gametophyte