What Is A Sporophyte Apex. Upon germination of the seed, the sporophyte resumes growth. During the gametophyte stage, haploid (n) gametes or reproductive cells such as sperm and eggs are developed.
Bryum argenteum Hedw. Introduction to Bryophytes
The ecological role and way of life of this sole photosynthetic phase of the conifer life cycle varies with the size, form, and habitat of. Web when spores near the apex are mature the sporophyte develops slits there. The resulting meiospores develop into a gametophyte. Generally there are two slits but in some species there is only one and there are also species in which four slits develop. Each parent produces four daughter cells, figure 23.28 which of the following statements about the laminaria life cycle is false? Web this apical archegonial tissue, known as a calyptra (figures 3.16, 3.17h), may function in protecting the young sporophyte apex. Upon germination of the seed, the sporophyte resumes growth. The sporophyte embryo develops in the seed. The capsule of most mosses has a specialized mechanism of dehiscence. The pollen grain germinates, forming a pollen tube that delivers the sperm to the egg in the ovule during fertilization.
The sporophyte generally develops a long stalk, known as a stipe, at the apex of which is born the sporangium or capsule (figures 3.16, 3.17g, h). The conjugate pair swaps macronuclei. Web the sporophyte produces spores (hence the name) by meiosis, a process also known as reduction division that reduces the number of chromosomes in each spore mother cell by half. The sporophyte embryo develops in the seed. The sporophyte is the 2n plant. As the sporophyte dries the slits open and the spores can be released. They have a life span that ranges from a few decades to more than 5,000 years. As lower areas of the sporophyte mature the slits extend downward. Upon germination of the seed, the sporophyte resumes growth. The resulting meiospores develop into a gametophyte. Generally there are two slits but in some species there is only one and there are also species in which four slits develop.
