Plant Kingdom

Plants Multicellular Autotrophs Eukaryotic Have chloroplasts and cell walls Sexual Reproduction

Nonvascular plants No Vascular Tissue Water and Food move by osmosis and diffusion Short (low to ground)

Vascular Plants Have vascular Tissue Phloem (carry food) Xylem (carry water) Grow Tall Rhizome: thick underground stem (p. 615)

Plant Life Cycle (alternation of generations) Sporophyte Stage (diploid) produces spores Gametophyte Stage (haploid) produces gametes

Seed Plants (produce seeds) Gymnosperms “naked seed” “seed-bearing” Example: Pine Trees Usually produce cones Male cones>(pollen) Female>(egg in ovule) Seed is not in a fruit Angiosperms “flowering plants” “have seed coat” Produce flowers Seeds are in a fruit Male reproductive part > Stamen Female reproductive part> Pistil

Gymnosperm & Angiosperm

Gymnosperm

Angiosperms

Plant Responses (p. 624) Tropism: plant response to an external stimulus Phototropism (light) Hydrotropism (water) Thigmotropism (touch) Gravitropism (gravity) Grows toward the stimulus (Positive) Grows away from (Negative)

Plant Review Questions 1.P P P P P. 581/588 3.P P P P P P P P P P P P P P P P. 595