Domain Eukarya Plant Kingdom. Traits of Plants: ♣ Multicellular, photosynthetic, eukaryotes ♣...

Domain Eukarya

Plant Kingdom

Traits of Plants:♣ Multicellular, photosynthetic, eukaryotes♣Waxy cuticle to prevent water loss♣ Stomata (openings on underside of leaf)

Traits of Plants:•Egg/embryo develops inside female gametangium

•Land plants evolved from charophytes (green algae)

Divisions of plant kingdom:1.Division Bryophyta

Traits: –no vascular tissue, tiny sperm swim to egg

–Live where it is wet.

Division Bryophyta (cont):–Example: moss–Dominant generation is gametophyte

– Be able to draw & label life cycle of moss.

2.Division TracheophytaTraits: vascular plants with

xylem & phloem

Types of Tracheophytes:a) seedless plants example: fern

Dominant generation is sporophyte.

Types of Tracheophytes:b.) Seed plants

Types of seed plants: 1) Gymnosperms (naked seed plants)ex: conifers (cone bearing)•Traits: leaves are needle- like. They have two kinds

of cones (male & female)

Gymnosperms (cont):Dominant generation is sporophyte.

Male gametophyte: pollen grain

Female gametophyte: part of ovule in female cone

•Male gametophyte produces sperm.•Female gametophyte produces egg.•Where does fertilization happen? in female gametophyte, in ovule•What is produced from zygote? Embryo within a seed

Tracheophytes (cont):Types of seed plants cont.2) Angiosperms (flowering plants)

•Traits: leaves are flat & broad.

•Vascular tissue is thicker than in Gymnosperms.

•Dominant generation is sporophyte.

female

male

Be able to draw a flower and label all parts

How and where do seeds form?

Ovule, found in ovary of flower,becomes the seed. It contains the egg.

What is the function of fruit?

Dispersal of seedsWhat does fruit develop from?ovary of flower

Define:Sporophyte- diploid (2n) part of

life cycle that makes haploid (n) spores by meiosis

Gametophyte- haploid (n) stage of the life cycle that makes gametes by mitosis.