Reproduction in plants. Can be sexual or asexual Asexual – budding, bulbs and rhizomes – vegetative growth by mitosis only – no diversity as genes are.

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Presentation transcript:

Reproduction in plants

Can be sexual or asexual Asexual – budding, bulbs and rhizomes – vegetative growth by mitosis only – no diversity as genes are not swapped between different individuals

Can be sexual or asexual Sexual reproduction in plants, just like in animals, involves the fertilization of eggs (female gametes) by sperm (male gametes). Two stages in their life cycle to carry out sexual reproduction – Alternation of Generations

Alternation of generation A haploid (n) stage – Gametophyte A diploid stage (2n) – Sporophyte (Copy drawing from board)

Differences between plant groups Mosses, ferns, gymnosperms and angiosperms have key differences in their alternation of generations. In some, the gametophyte is dominant; in others the sporophyte is dominant (dominant meaning the stage that the plant is in for most of its life and the stage that is more visible)

Differences between plant groups Pg 241 – 242 in your workbook (cut out Algae) Moss (bryophytes) Fern Gymnosperm (conifers) Angiosperm (flowering plants)

Mosses (bryophytes)

Ferns

Gymnosperm

Angiosperm