PPT-0 Plant Diversity II: The Evolution of Seed Plants

The reason that two sperm nuclei travel down the pollen tube is that they both stimulate growth of the pollen tube one fertilizes the egg and the other combines with the two polar nuclei one fertilizes the egg . Chapter 22. What Is a Plant . Plants:. Multi-cellular. Eukaryotic. Have a cell wall made of cellulose. Develop from multi-cellular embryos. Use chlorophyll(green pigment) to carry-out photosynthesis. Importance of Plants. Oxygen. Food/feed. Medicine. http://www.youtube.com/watch?v=6iEOTB1UjjQ. . Absorb Carbon Dioxide. Decoration (Aesthetic) . PLANT LIFE CYCLES. Plant Life Cycle. Annual. Goes from seed to producing seed in one growing season. Chapter Overview. On to another kingdom!. Plants are familiar, but also far more complex than you think:. Inter-plant chemical warfare. Unusual plant-animal relationships . Surprising plant-weather relationships. Why should we care about plants, at all?. Carbon dioxide levels. Indicators for ground level pollution, long before animals. Japan/ radioactive food….. But… . Kudzu- invasive. Did you know……. Chapter 8 Section 3. What is a Seed Plant?. Seed plants outnumber seedless plants. Produce much of the oxygen we breathe. All seed plants have roots, stems, and leaves. The plants that you see are the sporophytes, the gametophytes are microscopic. Eukaryotic diversity. A . eukaryote. is any organism of the domain . Eukarya. ; eukaryotic cells are characterized by the presence of a membrane-enclosed nucleus and organelles.. Eukaryotic diversity. Seed Plants. Recall that seedless plants were either nonvascular or vascular… either way they did . NOT. produce seeds. Seeds can be found . everywhere. …acorns, dandelion seeds, kernels of corn, even peanuts!. Introduction to Plants. Plants are multicellular, eukaryotic, have cell walls make of cellulose, and develop from multicellular embryos. They also carry out photosynthesis. . Trees, plants, shrubs, grasses, mosses, and ferns are all in this group. . Plant Propagation Plant Propagation The process of increasing the numbers of a species, maintaining a species, or preserving the vigor of a plant. Successful Plant Propagation Knowledge of technical skills Overview of Plants Ch. 22 - 24 Introduction to Plants Plants are multicellular, eukaryotic, have cell walls make of cellulose, and develop from multicellular embryos. They also carry out photosynthesis. Plant Diversity What Is A Plant? Multicellular eukaryotes Cell walls with cellulose P hotosynthesis using green pigments chlorophyll a and b Autotrophs Some are parasites or saprobes What Plants Need To Survive Lao Tzu . seed Saving. introductions. Name . Occupation. Foodshed: your ecological/agricultural region . Your history of saving seed. What is your goal for this training.. (one minute per person). Our goal: To increase the conservation. B.Sc- II – Sem – III. Unit - I. Dr. M. Nafees Iqbal. Head, Department of Botany. M.S.P Arts, Science & K.P.T Commerce College Manora. Gymnosperm . (Gk. . Gymnos. = naked; . sperma. = seed). Characteristics of organisms plant. Morphology . Anatomy . Taxonomy. . (Cryptogams (Non-Flowering Plants): 2. Spermatophyta (Seed Plants) 3. Gymnosperms (Naked Seed Plants) 4. Angiosperms (Flowering Plants); Monocots and Dicots..