Question

Berifly describe the life cycle of bryophytes in 100 words

Answer 1

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Bryophytes are a type of green plant that includes the mosses, liverworts, and hornworts. Read this lesson to learn about the surprisingly complex life cycle these plants have. You didn't realize bryophytes were so ©●●I..

The Bryophyte Life Cycle


Bryophyte generations alternate between a sporophytic generation (uses spores to reproduce) and a gametophytic generation (uses sperm and eggs to reproduce).
Let's look at the sporophytic generation first (but remember, this is a cycle and the two types are linked). Bryophytes produce spores through sexual reproduction. Individual plants may be either male or female (depending on the species), or an individual plant may have both male and female parts. An individual spore is haploid, meaning it only has one set of chromosomes. When a spore lands on the ground and germinates, it will produce a small leafy mat called a protonema.
The protonema develops into a gametophyte, bringing us to the second generation. Gametophytes are multicellular, haploid individuals. Each spore can create a gametophyte, and the structure of the gametophyte depends on the species.

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Answer 2

The haploid stage, in which a multicellular haploid gametophyte develops from a spore and produces haploid gametes, is the dominant stage in the bryophyte life cycle. The mature gametophyte produces both male and female gametes, which join to form a diploid zygote.