ANGIOSPERMS The Flowering Plants With Enclosed Seeds

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Presentation transcript:

ANGIOSPERMS The Flowering Plants With Enclosed Seeds

KINGDOM : PLANTAE PHYLUM : TRACHEOPHYTA SUBPHYLUM : SPERMOPSIDA DIVISION : ANTHOPHYTA (Angiosperms) TWO CLASSES : 1. MONOCOTS 2. DICOTS

Angiosperms reproduce sexually through their flower parts. Angio = Vessel/Enclosed Sperm = Seed

Flower Parts MALE FEMALE

Variety of Pollen Grains Of The Three Cells Forming The Male Gametophyte – Two of these haploid cells are sperm cells used for Fertilization of the female gametophyte Pollen Grain Carries – Microscopic (3-Celled) Male Gametophyte

FEMALE GAMETOPHYTE CONSISTS OF SEVERAL CELLS THAT COLLECTIVELY ARE FEMALE GAMETOPHYTE CONSISTS OF SEVERAL CELLS THAT COLLECTIVELY ARE CALLED THE “OVULE” One Special Cell Of The Ovule (Megasporocyte) Gets Fertilized By One Of The Sperm Cells Of The Male Gametophyte Found In The Pollen Grain

ANGIOSPERM REPRODUCTION

In some plants the ovary enlarges to become a fruit Fleshy fruits aid in seed dispersal by attracting animals who eat the fruit (and therefore the seeds) and after the seeds pass through the digestive tract of the animal they germinate.

Animals ANGIOSPERMS USE DIFFERENT METHODS FOR SEED DISPERSAL Bananas Peaches Dates Avocados Jack fruit Mango Guava Cashews Figs Cherries Apples

Wind

Water

Two Major Classes of Angiosperms Monocots Dicots

Monocot v.s. Dicot Roots Stems

Importance of Angiosperms Uses of Angiosperms 1)     All fruit and vegetable crops. 2)     Cereal and grain crops 3)     Grasses for livestock 4)     Hardwood furniture 5) Bio-fuels – Ethanol from Corn etc.

THE END