NEET BIOLOGY

Detailed explanation-1: -The sperm are produced within tiny, typically stalked, club-shaped structures called antheridia and you can also see bryophyte sperm referred to as antherozoids. The stalk anchors the antheridium to the gametophyte. Each antheridium produces numerous sperm.

Detailed explanation-2: -Antheridia are male sex organs found in the gametophyte phase of bryophytes and pteridophytes. They produce male gametes called antherozoids.

Detailed explanation-3: -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.

Detailed explanation-4: -Gametophytes of dioecious bryophytes are unisexual, producing either eggs or sperm, but not both. Males and females compete for space but require close proximity for sexual reproduction. By contrast, gametophytes of monoecious bryophytes are bisexual, able to produce both eggs and sperm.

Detailed explanation-5: -Archegonia is the female sex organ present in the gametophyte which is produced at the leafy apex in sexual reproduction. Antheridia is the male sex organ present in the gametophyte which is also produced at the apex. These are haploid structures. This type of reproduction is found in mosses.