BIOL108 Chapter Notes - Chapter 6: Megaspore, Pollen Tube, Meiosis

• School: University of Alberta
• Department: Biology (Biological Sciences)
• Course: BIOL108
• Professor: Trevor Pasanen

Document Summary

Cells in land plants and charophytes have distinct circular rings of proteins in plasma membrane. the rings synthesize cellulose microfibrils of the cell wall. Enzymes that help minimize loss of organic products resulting from photorespiration. Group of microtubules that form between daughter nuclei of dividing cells. Durable polymer that prevents exposed zygotes from drying out. Within the sporangium diploid cells called sporocytes undergo meiosis and generate. Cells joined into tubes that transport water and nutrients throughout the plant. Vascular plants are those that have vascular tissues. Contains two clades; lycophytes (club mosses and their relatives) and pterophytes (ferns and their relatives). both of these clades are seedless. that is why sometimes they are called seedless vascular plants. Represented by three phyla; liverworts (phylum hepatophyta), mosses (bryophyta) and. Germinating moss spores produce mass of green branched one-cell thick filaments known as protonema. Long tubular single cells or filament cells.