What is antheridium and archegonium Class 11?
(ii) Antheridium – It is the male sex organ present in bryophytes and pteridophytes and is surrounded by a jacket of sterile cells. It encloses the sperm mother cells, which give rise to the male gametes. (iii) Archegonium – It is the female sex organ present in bryophytes, pteridophytes, and gymnosperms.
What is antheridium and archegonium?
Hint: Antheridia is the male sex organ, and is a haploid structure whose function is to produce male gametes called antherozoids or sperms. Archegonia is the female sex organ, which produces female gametes mainly in cryptogams. It is responsible for the production of female gametes that are egg cells or ova.
What is archegonium class 11?
(iii) Archegonium – It is the female sex organ present in bryophytes, pteridophytes, and gymnosperms. In bryophytes and pteridophytes, it generally has a swollen venter and a tubular neck and contains the female gamete called the egg.
What is archegonium and antheridium?
An archegonium (pl: archegonia), from the ancient Greek ἀρχή ("beginning") and γόνος ("offspring"), is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete. The corresponding male organ is called the antheridium.
What's the difference between antheridium and archegonium?
Antheridia are the male sex organs of the bryophytes and pteridophytes, whereas archegonia are the female sex organs.
What's the difference between archegonium and antheridium?
The female sex organ in non-flowering plants is the archegonium, with archegonia being the plural form. The male sex organ in non-flowering plants is called an antheridium. A gametophyte is the haploid gamete-producing form of a plant, while a sporophyte is the spore-producing form of the plant.Nov 1, 2022
Is an antheridium an archegonium?
Antheridium refers to the types of male reproductive organs in cryptogams, while archegonium refers to the type of female reproductive organs in cryptogams and within which an embryo will develop.Nov 18, 2019
What is the relationship between an archegonium and an Archegoniophore?
After fertilization, the zygote develops into a sporophyte inside the archegonium. As the sporophyte grows, the venter of the archegonium also grows and becomes a 'calyptra', which protects the growing young sporophyte. The sporophytes hang upside down beneath the archegoniophore.
Is antheridia and antheridium the same?
An antheridium is a haploid structure or organ producing and containing male gametes (called antherozoids or sperm). The plural form is antheridia, and a structure containing one or more antheridia is called an androecium.
What's the difference between antheridia and archegonia?
Hint: Antheridia is the male sex organ, and is a haploid structure whose function is to produce male gametes called antherozoids or sperms. Archegonia is the female sex organ, which produces female gametes mainly in cryptogams. It is responsible for the production of female gametes that are egg cells or ova.
What do you mean by antheridium?
The male sex organ, the antheridium, is a saclike structure made up of a jacket of sterile cells one cell thick; it encloses many cells, each of which, when mature, produces one sperm. The antheridium is usually attached to the gametophyte by a slender stalk.