Lecture 15 Flashcards
Closest Relative to Land Plants
Algae
Cyanobacterial Endosymbiosis
Uptake of photosynthetic prok. by euk.
Led to chloroplast
Plantae Characteristics 1
Photosynthetic
Chlorophyll a and b
Carotenoids
accessory pigments that protect from light
Plantae Characteristics 2
Cellulose in Cell wall
(polysaccharide polymer in microfibril)
4 major evolutionary innovations (in order)
Land
Vascular Tissue
Seed/pollen
Flower
Plant Reproduction Key Points
- Both haploid and diploid phases multi multi-cellular
- Meiosis produces spores NO GAMETES
- Duration of each phase is different per plant
Bryophytes
Dominant Gametophyte Generation
No vascular tissue or roots
In moist areas
Seedless Vascular Plants
Dominant Sporophyte life cycle
Vascular tissue
Shoot and Root purposes
Height for light
Exploring and exploiting soil
Gymnosperms
Multicellular seeds
Store nutrients in seeds
Seeds are food source for animals
Pollen
Male gametophyte of seed plants
Dispersed by:
Animals
Wind
Water
Angiosperms
Flowering plants
produce flowers and fruits
Flowers Purpose
Sexual Reproduction
Fruits Purpose And Development
Dispersal
Develops from floral structure and carries seed