1108_L22_PlantRepro

Pre-Lab Questions Identify one reproductive difference between sporophytes and gametophytes. Gametophytes reproduce sperm and eggs asexually and then sexual reproduction is used. Which basically means gametophytes are haploids in the reproductive cycle. While sporophytes are diploids in the reproductive cycle. How do gymnosperms vary from other seed-forming plants? The seeds gymnosperms produce develop on the tips of the cones. In other seed-forming plants, it is in the chambers of the ovaries. How do abiotic factors such as wind or water influence pollination behavior? Abiotic factors such as wind can influence how far pollination is carried and the overall means of transportation. Experiment 1: Observation of Achegonium and Antheridium Slide Images Label the archegonium in the slides below. 635222419898ARCHEGONIUM 0ARCHEGONIUM 14608558346860001208775EGG 0EGG 63906114798300023918242828335VENTOR 0VENTOR 2340934161673900 2708941410241003721401286540ARCHEGONIUM 0ARCHEGONIUM 1433033136067100139050115372910019766810EGG 0EGG 28577954212120024168109525EGG 0EGG Label the antheridia in the figures below. 499568951835ANTHERIDIA 00ANTHERIDIA 125227910278280012522791029511001252279803968004146698410563GAMETOPHYTE TISSUE 00GAMETOPHYTE TISSUE 501320788459900 651510488256ANTHERIDIA 00ANTHERIDIA 158188862946100158537363253400158358740022700 240059513246400024112289888280010734161317625ANTHERIDIA 00ANTHERIDIA 1421824360946STERILE JACKET 00STERILE JACKET 275504446545500373948621171200045254381912620SPERMATOGENOUS TISSUE 00SPERMATOGENOUS TISSUE 303346919656350015299962826740SPERM FOAMING TISSUE 00SPERM FOAMING TISSUE 362257226863500250169344037STERILE JACKET 00STERILE JACKET 1954027983083001477926991649001616119753642ANTHERIDIA 00ANTHERIDIA Post-Lab Questions Are the spores produced by the moss sporophyte formed by meiosis or mitosis? Are they haploid or diploid? The spores produced by the moss sporophyte are formed by meiosis and are haploid. Do the spores belong to the gametophyte or sporophyte generation? Sporophyte generation. Experiment 2: Observation of a Flower Post-Lab Questions What are some unique characteristics of angiosperms? Angiosperms seeds are found in a flower. Angiosperms have much smaller female reproductive parts than non-flowering plants. The seeds are covered by the fruit in angiosperm plants that grow to be fruits. How many carpels are in the lily? How many stamen? 3 carpels and 6 stamen. Describe the male gametophyte of a seed plant. It is the pollen. Pollens main function is to deliver male gametes to the ovule. Describe the female gametophyte of a seed plant. It is the ovule. It is the organ that forms seeds.