Reproduction in Seed Plants
Section 1.3 p. 111-115
Learning Outcome
•identify example methods used to ensure
their germination, growth and reproduction
Sexual Reproduction in plants
• Although the method varies, the process of how flowering plants
reproduce is the same as animals
• It still requires a male gamete and a female gamete coming together
to create a zygote, and an embryo
Male and Female Parts to a flower
• Each type of plant contains a Male part, and a Female part
• Even though they contain both parts some flower only produce
Female Gametes, and others only produce Male gametes
• And some produce both, and would be capable of self pollination
Male Part
Female Part
Male Part of the Flower
• Pollen contains the male gametes
• Pollen is located on the part of the flower known as the Stamen
• The Stamen is made up of the Anther and Filament
Female Part of the Plant
• Ovules contain the female gametes of the plant
• They are located in the Pistil
Pollination
• This occurs when pollen is transferred from the anther to the stamen
(the sticky top portion of the pistil)
• It requires the help of pollinators such as bees, flies, beetles, moths,
humming birds, bats, and any other animals that visit flowers
(sometimes they are specific to the plants they visit)
• Plants make flowers solely to attract these pollinators
• The pollinators travel from flower to flower to gather nectar and
pollen to feed their young
• The pollen will stick to the pollinator from one flower, and then
hopefully transfer to the stamen of another flower
Fertilization
• Fertilization occurs when the male gamete and female gamete unite
• Cross Pollination occurs when the pollen is transferred from one
plant to another
• Cross Fertilization occurs when the when a grain a grain of the pollen
produces a long tube that eventually grows down the style to the
ovary