Presentation on theme: "Plant Overview and Reproduction Pre-AP Biology. 2 What Is a Plant? Members of the kingdom Plantae Plants are multicellular eukaryotes Plants have cell."— Presentation transcript:
2 What Is a Plant? Members of the kingdom Plantae Plants are multicellular eukaryotes Plants have cell walls made of cellulose. Plants develop from multicellular embryos and carry out photosynthesis using the green pigments chlorophyll a and b
3 Overview of the Plant Kingdom Botanists divide the plant kingdom into four groups based on three important features: 1.Water conducting tissues 2.Seeds 3.Flowers
6 The Plant Life Cycle Characterized by alternation of generations: the two generations are the haploid (N) gametophyte, or gamete- producing plant, and the diploid (2N) sporophyte, or spore-producing plant.
Pollination Most gymnosperms (some angiosperms) are wind pollinated Most angiosperms are pollinated by animals Insect pollination beneficial to insects and other animals: provides them with food Plants also benefit: this method of pollination is more efficient