Quick Answer: In which fungi and algae both male and female gametes are motile?

In which fungi both male and female gametes are motile?

In some organisms like fungi and algae both male and female gametes are motile. The male gametes need a medium through which it can move and can reach the female gamete. In plants like algae, bryophytes and pteridophytes water serve as the medium through which gamete transfer takes place.

In which both the types of gametes are motile?

Each sperm cell, or spermatozoon, is small and motile. The spermatozoon has a flagellum, which is a tail-shaped structure that allows the cell to propel and move. In contrast, each egg cell, or ovum, is relatively large and non-motile. During fertilization, a spermatozoon and ovum unite to form a new diploid organism.

Which algae produce motile male gametes?

Among the brown algae, some forms, such as the filamentous Ectocarpus, have equal-sized biflagellate motile gametes. The large brown seaweeds, exemplified by the genera Laminaria and Fucus and their allies, have nonmotile free-floating ova and motile sperm (called antherozoids).

Does algae have motile sperm?

Any large, flat multicellular form is referred to as a thallus. Gametes that are identical are called isogametes; if different, heterogametes (oogamy refers to a large, non-motile egg; in such cases sperm are small and motile). About 4000 species of red algae are known. They inhabit the edges of the sea everywhere.

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What are Homogametes or Isogametes?

Homogametes are also known as isogametes. Homogametes are similar in morphological appearance and male and female gametes can’t be distinguished. For example, in Rhizopus. Heterogametes are the gametes that are morphologically dissimilar and thus, male and female gametes can be distinguished.

Is it possible that same individual can produce both male and female gamete?

Cross-fertilization, also called Allogamy, the fusion of male and female gametes (sex cells) from different individuals of the same species. … There are a number of ways in which the sex cells of two separate individuals can be brought together.

In which algae both male and female gametes are non-motile?

In the red alga Polysiphonia, non-motile eggs are fertilized by non-motile sperm. In flowering plants, the gametes are non-motile cells within gametophytes.

Are the male gametes in angiosperms motile?

Non-motile as there is no flagellated stage in the life cycle of angiosperms.

Which of the following has motile male gametes?

Anthoceros, Funaria and Spirogyra.

Which algae non-motile male gametes are formed?

In algae, haploid cells act directly as gametophytes as they produce gametes. Option A Blue green algae: Blue green algae or Cyanophyceae reproduce through simple division or fragmentation or non-motile spores. Also, they do not reveal any motile phase during the life cycle.

Does Spirogyra have motile gametes?

In Spirogyra, gametes are non-motile and sexual reproduction takes place by conjugation. ( Sargassum belongs to Phaeophyceae group of algae. They are commonly called as ‘brown algae’ and contain photosynthetic pigments chlorophyll a and c.