What is the dominant structure in bryophytes?

The leafy green plant that we see when we look at a moss or a liverwort is really the gametophyte, which is the dominant stage in all bryophytes.

What phase of the bryophyte life cycle is dominant quizlet?

in bryophytes, the gametophyte is the dominant, recognizable stage of the life cycle and is the stage that carries out most of the plants photosynthesis.

What are the life cycle of bryophyte?

Reproduction and life cycle. The life cycle of bryophytes consists of an alternation of two stages, or generations, called the sporophyte and the gametophyte. Each generation has a different physical form.

Which stage of the life cycle is the dominant one for bryophytes aka Which would you recognize as the moss liverwort Hornwort )?

gametophyte
a) Stage 1: Bryophytes are unique amongst other land plants in that the gametophyte is the dominant stage of its life cycle. The gametophyte of the bryophyte are the green structures you see in this photo.

What is the dominant phase in the life cycle of a bryophyte and how does it compare to the dominant phase of the rest of the land plants?

How does this compare to the dominant phase of the rest of land plants? – The dominant phase of bryophytes is the GAMETOPHYTE phase. – The dominant phase in other land plants is the sporophyte. They have shorter gametophyte phases.

What is the dominant structure in the fern life cycle?

In the life cycle of a fern, the sporophyte generation is dominant. A mature sporophyte fern has the familiar leafy fronds. The undersides of the leaves are dotted with clusters of sporangia. Sporangia produce spores that develop into tiny, heart-shaped gametophytes.

Are bryophytes sporophyte dominant?

During the course of evolution, the sporophyte stage has become progressively increased. Thus, in the higher (i.e., vascular) plants the sporophyte is the dominant phase in the life cycle, whereas in the more primitive nonvascular plants (bryophytes) the gametophyte remains dominant.

Which part of a bryophyte plant produces eggs?

archegonia
The eggs are produced in tiny, typically somewhat flask-like structures called archegonia. Each archegonium holds one egg (in a swollen section called the venter) and the sperm enter through the channel in the narrower, tubular section (or neck).

Why gametophyte is dominant in bryophytes?

Sporophytes produce haploid spores by meiosis, that grow into gametophytes. Bryophytes are gametophyte dominant, meaning that the more prominent, longer-lived plant is the haploid gametophyte. The diploid sporophytes appear only occasionally and remain attached to and nutritionally dependent on the gametophyte.

Which phase is dominant in the life cycle of bryophytes and Pteridophytes?

In Bryophytes, the dominant phase is the gametophyte and in Pteridophytes, it is the sporophyte.

Do bryophytes have a dominant gametophyte phase?

Thus, the gametophyte stage is dominant in the more primitive (nonvascular) plants (bryophytes), whereas the sporophyte is the dominant phase in the life cycle of higher (i.e., vascular) plants.

How is gametophyte a dominant phase in the life cycle of bryophytes Class 11?

Some cells of the sporophyte undergo reduction division and give rise to the haploid spores which germinate to produce gametophyte. Thus, the gametophyte is the dominant phase and occupies a major part of the lifespan of the bryophyte.

What is the photosynthetic phase of bryophytes?

In bryophytes (liverworts, hornworts, and mosses), the gametophyte stage is dominant. The leafy green structures we recognize (Figure below) are haploid, and perform most of the photosynthesis.

Is the dominant phase in the life cycle of a Pteridophyte?

The sporophyte. The dominant phase of generation in their life cycle is the diploid sporophyte. … Thus, the dominant phase is sporophyte in pteridophytes.

Which is the dominant phase in pteridophytes?

sporophyte
The fertilized egg or zygote undergoes the division of mitosis and forms the different parts like stems, roots, and sporophyte, and later spores are formed again through meiosis and spread by the dispersion, and, again the life cycle continues, so the sporophyte is the dominant phase of pteridophyte.

Which stage of the bryophyte life cycle is haploid?

D is correct. All bryophytes have a dominant gametophyte stage in their life cycle. During this stage, the plant is haploid and the relationship organs that produce the gametes are developed.

Which cell in the life cycle of bryophytes undergo meiosis?

sporophyte
Figure 20.2. Life cycle of a moss (genus Polytrichum). The sporophyte generation is dependent on the photosynthetic gametophyte for nutrition. Cells within the sporangium of the sporophyte undergo meiosis to produce male and female spores, respectively.

Where does meiosis occur in life cycle of bryophytes?

Meiosis takes place in the tiny sporophyte stage of bryophytes, which are attached to and dependent on the much larger gametophyte stage. The sporophytes create spores by meiosis in the sporangium, which are dispersed by wind and water to form new gametophytes.