Transcript plantae
Kingdom Plantae Plant Characteristics AUTOTROPHIC MULTICELLULAR EUKARYOTIC MOST CELL TERRESTRIAL WALLS OF CELLULOSE Dominant weight DIVERSE!! tall!! group on land based on Range from 2mm to 100m Are there exceptions? Diversity? KINGDOM PLANTAE NONVASCULAR VASCULAR DIVISION BRYOPHYTA DIVISION TRACHEOPHYTA MOSSES LIVERWORTS hornworts Seedless: FERNS SEED PLANTS Nonvascular plants hornwort Seedless plants Seed plants Gymnosperms Angiosperms What obstacles did plants have to over come to live on land? DRYING OUT - CUTICLE & STOMATA MEANS OF REPRODUCTION MEANS OF GETTING WATER AND NUTRIENTS PRIMITIVE: AMONG THE 1st LAND PLANTS NONVASCULAR NO TRUE ROOT SYSTEM: HABITAT? NO SIZE? SIZE VASCULAR TISSUE: LIMITED BECAUSE SPERM MUST SWIM TO FERTILIZE EGGS Plants are about 3cm tall and 1 cell thick Clump of moss is a bunch of tiny individual plants Each plant contains rhizoids for anchoring them in soil. IMPORTANT BUILDERS PREVENT PEAT SOIL EROSION MOSS (SPHAGNUM) GROWS IN BOGS OR PONDS & USED FOR FUEL, MULCH, ETC. Chloroplast What role do plants play in the Water cycle? What role do plants play in the Carbon Cycle? Nitrogen Proteins, N.A., chlorophyll, ATP and growth Carbon Growth, photosynthesis Potassium Phosphorus ATP, ADP, N.A., phospholipids of cell membrane Active transport, enzyme activation, osmotic balance and stomata opening Calcium Cell wall, enzymes, cell membrane activity Magnesium Part of chlorophyll, needed for photosynthesis and activation of enzymes Sulfur Proteins, cellular respiration What role do plants play in the Nitrogen Cycle? Nitrification Bacteria in soil take up ammonia and oxidize it into nitrites and nitrates and plants use it to create amino acids Denitrification Process of how nitrogen is returned to the atmosphere when bacteria break down nitrates and release nitrogen gas Ammonification Decomposers break down waste organisms and release the N they contain as ammonia Discuss Ways that plants move. Phototropism Gravitropism Plant responses to gravity Photoperiodism Plant responses to light the physiological reaction of organisms to the length of day or night Thigmotropism Plant responses to touch MALE & FEMALE ON SEPARATE PLANTS MALE REPRODUCTIVE ORGAN= ANTHERIDIUM PRODUCES SPERM FEMALE REPRODUCTIVE ORGAN = ARCHEGONIA PRODUCES EGG Photosynthesis