Ch 30 Flashcards
(7 cards)
1
Q
Land plants evolved from
A
green algae
2
Q
Common characteristics of land plants and algae
A
cellulose, primary endosymbiotic plastid
3
Q
Common characteristics of land plants and charophytes
A
Rings of cellulose-synthesizing proteins, formation of a phragmoplast, structure of the flagellated sperm
4
Q
Five Key Traits of Land Plants
A
- Alternation of generations
- Walled spores produced in multicellular sporangia
- Gametes are produced in multicellular gametangia
- Dependent embryos
- Apical meristems
5
Q
Sporopollenin
A
Toughest biopolymer, protects the spore and the pollen
6
Q
Land plants
A
Those that have terrestrial ancestors and have only few or no life stages dependent on water
7
Q
Land plants produce
A
oxygen and food, and create carbon sinks
