Plantae
Tags
bio/eco
cegep/3
Word count
162 words
Reading time
2 minutes
Kingdom of Eukarya
- Cuticle
- Cellulose cell wall
- Chlorophyll a and b
Classification
- Moss
- Most primitive
- Seedless
- Gametophyte dominant
- => very short
- => needs shade
- Fern
- Green algae
| Taxon | Description | Vascular | Sporophyte dominant | Flagellated sperm -> pollen | Seed |
|---|---|---|---|---|---|
| Moss | No | No | No | No | |
| Fern | Yes | Yes | No | No | |
| Gymnosperm (conifier) | Yes | Yes | Yes | Yes | |
| Angiosperm (flowering plant) | Yes | Yes | Yes | Yes | |
| => | Very short Needs humidity | Very short Needs shade | No need for humidity for fertilization | Protection and nutrition for zygote and embryo |
vascular system
Found in ferns, gymnosperms, angiosperms
- Structural support
- Long distance transport of water, mineral and sugar
- Driven by difference in pressure
Tissues
Xylem
Dead tubular cells
- Structural support
- Carries water and mineral up
Phloem
Alive sieve tube cells
- Carries sugar from photosynthesis to all cells
Ajitani Hifumi