Which term describes a haploid plant form in the plant life cycle?

The term that describes a haploid plant form in the plant life cycle is gametophyte. In the alternation of generations that characterizes the life cycles of plants, there are two distinct forms: the sporophyte and the gametophyte. The gametophyte develops from spores, which are haploid, meaning they contain only one set of chromosomes. This phase is crucial for sexual reproduction, as the gametophyte produces gametes (sperm and eggs) through mitosis.

In contrast, the sporophyte is the diploid phase that arises from the fertilization of the gametes, leading to a plant that typically produces spores through meiosis. Angiosperms and monocots describe specific categories of plants rather than stages in the life cycle; angiosperms are flowering plants that can have both sporophyte and gametophyte forms within their lifecycle, while monocots refer to a specific group of angiosperms characterized by having one cotyledon in their seeds. Therefore, the correct understanding of these terms highlights that the gametophyte phase is essential for the haploid stage in the plant life cycle.