Lecture 024 Kingdoms Fungi & Plantae. Plantae Fungi Animalia Protista Monera.
Kingdom Plantae Seed Plants Mr. Skirbst Life Science Topic 15.
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Transcript of Kingdom Plantae Seed Plants Mr. Skirbst Life Science Topic 15.
Kingdom PlantaeSeed Plants
Mr. SkirbstLife Science
Topic 15
Seed Plants
Seed Plants- Do not require standing water
to reproduce
Seed Plants- Do not require standing water
to reproduce- Encase young plants to protect
& feed
Seed StructureConsists of:1- seed coat
2- young plant(embryo)
3- stored food(cotyledon)
CotyledonMonocot – one cotyledon
Dicot – two cotyledons
Reproductive Structuresovule -
Reproductive Structuresovule – female structure
containing egg cells
pollen -
Reproductive Structuresovule – female structure
containing egg cells
pollen – male structure containing sperm cells
(often with spikes on surface)
Types of Plantsgymnosperms -
Types of Plantsgymnosperms – “naked” seeds
(not covered by ovary)
Types of Plantsgymnosperms – “naked” seeds
(not covered by ovary)cones – location of reproductive structure(ex. Pine trees)
Types of Plantsangiosperms– seed contained in
“vessel”(seeds covered by ovary)
Types of Plantsangiosperms– seed contained in
“vessel”(seeds covered by ovary)flowers – location of reproductive structures(a.k.a. flowering plants)
Gymnosperms4 phyla:
Gymnosperms4 phyla:
1- cycads – tropical, palmlike
Gymnosperms4 phyla:
1- cycads – tropical, palmlike2- ginkoes – ornamental (seeds stink!)
Gymnosperms4 phyla:
1- cycads – tropical, palmlike2- ginkoes – ornamental3- conifers – cone-bearing, evergreen (like pine)
Gymnosperms4 phyla:
1- cycads – tropical, palmlike2- ginkoes – ornamental3- conifers – cone-bearing4- gnetophytes – blended characteristics of gymno & angiosperms
Angiosperms- Largest plant group in the
world
Angiosperms- Largest plant group in the
world- Also called “flowering” plants
Flowers- Contain the reproductive
organs
Flowers- Stamen (male)
Flowers- Pistil (female)
Tropism- A plant’s response to a stimulus
Tropism- A plant’s response to a stimulus
Response – a reaction to a stimulus
Tropism- A plant’s response to a stimulus
Response – a reaction to a stimulus
Stimulus – something causing a reaction
2 Types of Tropism1- Phototropism -
2 Types of Tropism1- Phototropism – a plant’s
response to light
2 Types of Tropism2- Gravitropism -
2 Types of Tropism2- Gravitropism – a plant’s
response to gravity
TropismPositive tropism – response
toward a stimulus
TropismPositive tropism – response
toward a stimulusNegative tropism – response
away from a stimulus