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How are the Gametophytes of seed plant different from the gametophytes of seedless plants?
Seed plants:produce seeds Seedless plants:don't produce seeds
What is the major difference between the gametophytes of a seedlees plant and a seed plant?
Seed plants are flowering plants so they product pollen that land on the female ovule and then produce a pollen tube that releases 2 sperm to fertilize the ovum and the polar nuclei and these form into a seed. In other seedless plants like algae and mosses the plants produce spores which are similar to pollen and many different versions of female gametes. To be honest seedless plants have many different life cycles that are much more in depth so the fertilization process and the maturation of the plants are very different.
Do gametophytes of seed plants are very large?
No, gametophytes of seed plants are usually very small and dependent on the sporophyte for nutrients. They are reduced in size compared to the sporophyte generation.
Why don't gametophytes or gametes of seed plants need standing water to function?
Gametophytes of seed plants do not need standing water to function because they produce male and female gametes within protective structures (pollen grains and ovules) that are transferred by wind, insects, or other means for fertilization. This adaptation allows seed plants to reproduce successfully in a variety of environments, not relying on standing water for the fertilization process.
Where does megasporangia take place?
Megasporangia are structures that produce megaspores, which are involved in the formation of female gametophytes in seed-producing plants such as gymnosperms and angiosperms. Megasporangia are typically located within the ovules of the plant's reproductive structures, where they develop into megagametophytes during the process of seed formation.
What is the production of two kinds of spores by plant called?
The production of two kinds of spores by a plant is called heterospory. In this process, plants produce microspores, which develop into male gametophytes, and megaspores, which develop into female gametophytes. Heterospory is observed in various plant groups, including seed plants and some ferns, and it plays a crucial role in their reproductive strategies.
What structure does the male gametophyte become?
In flowering plants, megaspores become the female gametophytes.
What is the scientific name for pollen grains?
The scientific name for pollen grains is "microgametophytes." These are the male gametophytes in seed plants that produce the male gametes necessary for fertilization.
What are male gametophytes called?
Male gametophytes of seed-producing plants are called pollen grains. These are the structures that produce the male gametes, known as sperm cells, which are required for fertilization to occur. Pollen grains are dispersed through the air or by insects to reach the female reproductive structures of plants.
Can marijuana seeds produce multiple plants from one seed?
No, male marijuana plants do not have seeds. They can only provide pollen to the female plants who in turn can produce seeds. These seeds can both grow into male or female plants.
What is heterospory?
Heterospory is the production of spores of two different sizes and sexes by the sporophytes of land plants. Heterospory was evolved from isospory independently by several plant groups in the Devonian period as part of the process of evolution of the timing of sex differentiation. Heterosporic plants produce small spores called microspores which either germinate to become male gametophytes or have reduced male gametophytes packaged within them, and similarly larger spores called megaspores that germinate into female gametophytes, or which have female gametophytes packaged within them.
The tiny male gametophyte of seed plants that produces sperm?
Yes, It is cool though because in seed plants the gametophyte is microscopic and remains in the sporophyte. It gains extra protection (UV light, Drying out ect) and nutrition. This increases the chance of survival when compared with the free living gametophytes of seedless plants. (awesome evolutionary step that lead to the increased probability of seed production)
