Transcript Kingdom - Plantae

Kingdom - Plantae
Plant Evolution
Plant Characteristics
• Vascular or Nonvascular
• Roots
– Taproots or Fibrous Roots
• Seeds?
• Flowers?
• Dominant Life Stage – Gametophyte or
Sporophyte
To be a plant you must…
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Cell wall made of cellulose
Autotroph
Eukaryote
Multicellular
Alternation of Generations
Domain Eukarya
Plant Parts/ Adaptations
• Stomata – openings on the sides of leaves
that allow CO2 to enter and O2 to exit
• Cuticle – waxy covering on leaves – prevents
water loss
• Vascular Tissue – transport tissues in plants
– Xylem (transports water and minerals to leaves)
and Phloem (transports products of
photosynthesis to roots and stems)
• Seeds – plant structure that contains an
embryo, nutrients and is covered by a
protective coat
Cross-section of a leaf
Plant Reproduction
• Alternation of Generations – Alternate
between haploid and diploid
• Gametophyte – haploid – makes sperm
and eggs
• Sporophyte – diploid – made from the
fusion of 2 gametophyte gametes – makes
spores that grow into the next
gametophyte generation
Alternation of Generations
Parts of a Flower
Phylum Hepatophyta - Liverworts
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Avascular
No roots
No seeds
No Flowers
Gametophyte is
dominant
• Very simple plants
Phylum – Bryophyta - Mosses
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Avascular
No roots
No seeds
No flowers
Dominant
Gametophyte
• Very simple
Phylum – Pterophyta - Ferns
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Vascular
Roots
No seeds
No flowers
Sporophyte is
dominant
Phylum – Coniferophyta –
Conifers/ Gymnosperms
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Vascular
Roots
Seeds
No Flowers
Sporophyte is
dominant
• Some are Dioecious –
have male trees and
female trees
Phylum – Anthophyta - Angiosperms
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Vascular
Roots
Stems
Seeds
Flowers
Dominant
Sporophyte