Plant Module - Bio 152, UW Madison with complete solution 2023

Plant Module - Bio 152, UW Madison with complete solution 2023Why is movement to land beneficial? - correct answer Less competition Con of Land Transition - correct answer Cells Dry Out Con of Land Transition - correct answer Have less physical support Con of Land Transition - correct answer Sperm will have a harder time fertilizing eggs Traits of Charophytes that suggests they're closely related to land plants - correct answer Cellulose cell wall, Chlorophyll a&b, two anterior flagella Pre-adaptations of Charophytes - correct answer Fresh Water, Life cycle that allows dispersal by wind - using spores, spores covered in sporopollenin, can associate with mycorrhizal fungi Plant Adaptations - correct answer Cuticle - conserve water Cuticle - correct answer inhibits gas exchange, so stomata and pores are needed Plant Adaptation - correct answer Embryo - hence embryophytes How many spores does a charophyte doing zygotic meiosis make for each fertilization event? - correct answer 4 Plant Adaptation - correct answer Alternation of Generations Gametophyte - correct answer (haploid) makes gametes by mitosis Sporophyte - correct answer (diploid) makes spores by meiosis Spore - correct answer Makes gametophyte by mitosis embryo - correct answer young sporophyte that is nourished by maternal tissue, made from zygote by mitosis When does meiosis occur in the land plant life cycle? - correct answer During the formation of spores by the sporophyte Bryophytes - correct answer Liverworts, Mosses, Hornworts - All are very short, live in moist understories of forests, gametophyte dominant, sporophyte dependant Liverworts - correct answer Have pores instead of stomata Mosses - correct answer Have stomata (all lineages after too), economically important - florist trade and peat Hornworts - correct answer Sporophyte long lived (longer than other bryophytes) Why do all derived lineages have vascular tissues? - correct answer Over-time sporophytes became larger, more complex, and acquired a vascular system