AP BIOLOGY

Detailed explanation-1: -The term “sporangia” literally means “spore in a vessel, ” as it is a reproductive sac that contains spores. Inside the multicellular sporangia, the diploid sporocytes, or mother cells, produce haploid spores by meiosis, which reduces the 2n chromosome number to 1n.

Detailed explanation-2: -Sporangia can produce spores by mitosis, but in nearly all land plants and many fungi, sporangia are the site of meiosis and produce genetically distinct haploid spores.

Detailed explanation-3: -vascular plants produce cells called spore mother cells-since they will give rise to spores-in spore cases (sporangia). Spore mother cells are usually surrounded, during development, by a special nutritive tissue. In the more primitive groups, each sporangium holds many mother cells.

Detailed explanation-4: -Within the sporangia are spore producing cells called sporogenous cells. These cells undergo meiosis to form haploid spores.

Detailed explanation-5: -A sporangium (pl., sporangia) is a plant or fungal structure producing and containing spores. Sporangia occur on angiosperms, gymnosperms, ferns, fern allies, bryophytes, algae, and fungi. Their spores are sometimes called sporangiospores.