Plant Science
Root functions
-Absorption -Anchoring -Storage
-Vegetative reproduction & competition
Parts of a flower
Sepals, petals, pistil, stigma, style, ovules, ovary, stamen, anther, filament
What are the 4 major kingdoms of taxonomic hierarchy?
Animal, Plant, Fungi, Protist
Endosperm
Is the food source for the developing sporophyte embryo.
Haploid
(n)
Vascular Tissue uses...
Xylem and Phloem for transport of water, sugars.
Parts of a leaf
Petiole, stem, base, lamin or blade, leaf margin, apex, secondary or lateral veins, primary veins.
Meiosis
Meiosis has a change in ploidy. (2n to 1n)
Bryophytes characteristics
Lacking vascular tissues, depend on diffusion and osmosis for the movement of water and minerals. Lack true roots, stems or leaves. Gametophyte dominant.
Diploid
(2n)
What occurs during Transpiration?
Flowering plants (angiosperms) are split into what 2 groups
Monocots and dicots
Mitosis
Mitosis has no change in ploidy. (2n to 2n) or (1n or 1n)
Of the 4 major groups of plants, which group includes the ferns
Pterophytes
Reproductive chamber means...
Archegonia (female organ), antheridia (male organ)
5 forms of seed dispersal
-By wind -by animals - by water - by bursting -humans
Eudicot flower structure characteristics.
- Two cotyledons -netlike veins -petals in fours/ fives - arrangement ringed in stem
Challenges of Terrestrial life
Maintain water, obtaining resources, support, reproduction & dispersal of offspring.
Sporophyte generation
Dominant, contains true vascular tissue, sporangial tissue is more developed.
Generation means either...
Sporophyte (produces spores), or gametophyte (produces gametes)
-Fleshy Fruit -Dry indehiscent -Dry dehiscent -Aggregate fruit -Multiple fruit
Monocot flower structure characteristics.
-One cotyledon -Parallel veins
-Multiples of 3 petals -Vascular bundles in stem
Plant kingdom- Four main groups
Bryophytes- nonvascular plants
Lycophytes & Pterophytes- seedless vascular
Gymnosperms- naked seed plants
Angiosperms- flowering plants
Gametophyte generation
microscopic, undergoes alternation of generations, spores produced & dispersed by wind. Gametes produced & water dependent fertilization.
In angiosperms what makes up the 3n endosperm