Transcript plants
1 cell walls -cellulose eukaryotic autotrophic 2 sexual & asexual reproduction plants multicellular What plants need to live 3 Land Adaptations 4 Present 5 Past Divisions of Plants 7 8 9 spores 10 Mosses •Small •Must live 11 in moist place Majority of liverworts grow in moist, shady locations 17 Liverworts 18 19 20 These plants are sometimes called scouring rushes because the epidermal (outer) cells contain silica in their cell walls. They were used by Native Americans & early pioneers for scrubbing and polishing. 24 26 27 28 33 34 35 36 37 Seeds can tolerate unfavorable conditions by becoming dormant. When conditions become favorable, the seed sprouts into a new plant. 38 39 40 42 44 Bean roots 45 •Provide structural support •produce leaves, branches, and flowers. •Transport water and minerals between the roots and leaves. STEMS 47 leaves site of photosynthesis, which produces food for the entire plant. 49 Waxy covering to prevent water loss Vascular tissue Outer layer of cells 50 51 •“naked seed” •Seeds produced in cones 52 Pollen Grains 54 57 Scientist can learn information about past weather and climate from tree rings. 59 Cartoon Break 60 Produce their reproductive structure in flowers 61 62 “Seed Leaf” 63 Monocots vs. Dicots 64 65Flowers are unique reproductive organs that produce seeds surrounded by a fruit. Female POLLINATION Male Pollinationtran sfer of pollen 67 69 Carnivorous Plants 70 Seed plants have important uses for •Food and Medicine •Angiosperms produce flowers, fruits, seeds, and pollen that provide food essential to many organisms, including humans--cereal grains, legumes, &root crops. •Trees provide food and shelter for many animals, as well as providing fuel, lumber, and paper products. •Fibers like cotton.