What does Archegoniophore mean in biology?
What does Archegoniophore mean in biology?
Definition of archegoniophore : the stalk or other outgrowth of a prothallium upon which archegonia are borne (as in liverworts of the genus Marchantia) — compare carpocephalum.
What is Archegoniophore botany?
An upright structure consisting of a stalk and cap that bears the archegonia in certain liverworts. In Marchantia sterile raylike structures radiate from the cap giving it the appearance of a chimney sweep’s brush. In Reboulia the archegoniophore is umbrella shaped.
What is Archegoniophore and Antheridiophore?
Antheridiophore and Archegoniophore are the structures found in plants like bryophytes. Antheridiophore is the stalk like structure (gametophore) that bears antheridia i.e male sex organs. Archegoniophore is a stalk like structure on which archegonium i,e female sex organs are borne.
What is Archegonium Class 11?
Archegonium is the female sex organ that produces the female gamete or egg. It is present in the life cycles of mosses (bryophytes), pteridophytes, and gymnosperms.
What is Archegonia 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 the difference between Antheridiophore and Archegoniophore?
Antheridiophore bears the male sex organ antheridia while Archegoniophore bears the female sex organ archegonia. Antheridia are embedded in the upper surface of each lobes and the pit like cavities having the antheridia is called the antheridial chambers.
What is Antheridium with example?
An antheridium is a haploid structure or organ producing and containing male gametes (called antherozoids or sperm). Many algae and some fungi, for example ascomycetes and water moulds, also have antheridia during their reproductive stages.
