1. KINGDOM PLANTAE CONCEPT 3: ANALYZING THE DIVERSITY OF PLANTS Biological Diversity Continued...

2. Learning Intentions – Concept 3 You must know:  Why land plants are thought to have evolved from green algae.  Some of the disadvantages and advantages of life on land.  That plants have a unique life cycle termed alteration of generations with a gametophyte generation and a sporophyte generation.  The role of antheridia and archegonia in gametophtyes.

3. Learning Intentions – Concept 3  The major characteristics of bryophytes.  The major characteristics of seedless vascular plants.  Key adaptations to life on land unique to seed plants.  The evolutionary significance of seeds and pollen.  The role of flowers and fruits in angiosperm reproduction.  The role of stamens and carpels in angiosperm reproduction.

4. Review: Biological Diversity Kingdoms Domains Life!ArchaeaBacteriaEukarya(Protista)PlantaeFungiAnimalia

5. Kingdom Plantae  What makes a plant, a plant?  Produce cellulose for cell walls  Peroxisomes have enzymes that reduce the toxic efffects of photosynthsis  Produce cell plates during cell division  Life cycle highlights alteration of generations, with a gametophyte stage (haploid) and a sporophyte stage (diploid), while the zygote develops within the tissues of the female parent!

7. 29_08MossLifeCycle_A.swf

8. The Plant Evolutionary Groups Evolved from green algae Vascularization Development of Seeds Development of Flowers flowering plants Naked seeds ex) conifers ferns, club mosses, horsetails mosses, liverwarts, hornwarts

9. Mosses (nonvascular) Evolved from green algae

10. Mosses (nonvascular)

11. Ferns, etc (seedless, vascular) Vascularization

12. Ferns, etc (seedless, vascular)

13. Gymnosperms (naked seeds) Development of Seeds

14. Gymnosperms (naked seeds)

15. Angiosperms (flowering) Development of Flowers

16. Angiosperms (flowering) 30_10PlantTime Lapse_VT.swf

17. Let’s Dramatize the Life Cycles!!!  Mosses  Ferns  Gymnosperms  Angiosperms  20 minutes to compose 2 min skit  Props are welcome