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How do flowers reproduce?. How bout them flowers? Ummm, ummmm GOOOD!. True or False. T/F Sperm cells do not have to reach the eggs for fertilization to occur. T/F sperm cells of a flowering plant are contained in the ovary.
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How do flowers reproduce? How bout them flowers? Ummm, ummmm GOOOD!
True or False • T/F Sperm cells do not have to reach the eggs for fertilization to occur. • T/F sperm cells of a flowering plant are contained in the ovary. • T/F Pollination occurs when pollen grains are transported from anthers to stigmas. • T/F Each ovule contains an egg. • T/F Sperm cells within the pollen grain move down the pollen tube into an ovule and fuses with the egg undergoing fertilization.
Pollination • To get more flowers, pollination must take place. 1.Pollen is transferred from the stamen (male reproductive part) to the pistil (female reproductive part).
Pollination 2. Fertilization begins when pollen grains attach to the stigma. 3. Pollen lands on the stigma, a tube grows from the pollen grain through the style to the ovary. 4. Ovary has ovules containing the eggs. 2. 3. 4.
Fertilization 5. Sperm cells within pollen grains move down the pollen tube into an ovule. 6. Fertilization occurs as one of the sperm cells fuses with egg inside the ovule. 5. 6.
In some flowers: • Pollen falls on the stigma of the same flower. • Self-pollination occurs.(asexual reproduction) • Pollen from one flower falls on the stigma of a different flower. • Cross pollination takes place.(asexual reproduction)
Self-Pollinating Flower Male Female Pistil
True or False must • T/F Sperm cells do not have to reach the eggs for fertilization to occur. • T/F sperm cells of a flowering plant are contained in the ovary. • T/F Pollination occurs when pollen grains are transported from anthers to stigmas. • T/F Each ovule contains an egg. • T/F Sperm cells within the pollen grain move down the pollen tube into an ovule and fuses with the egg undergoing fertilization. Pollen grains