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Chapter 10-plant reproduction
Chapter 10-plant reproduction
Chapter 10-plant reproduction
Chapter 10-plant reproduction
Chapter 10-plant reproduction
Chapter 10-plant reproduction
Chapter 10-plant reproduction
Chapter 10-plant reproduction
Chapter 10-plant reproduction
Chapter 10-plant reproduction
Chapter 10-plant reproduction
Chapter 10-plant reproduction
Chapter 10-plant reproduction
Chapter 10-plant reproduction
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Chapter 10-plant reproduction


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  • 1. Plant Reproduction Chapter 10
  • 2. Types of reproduction in Plants
    • Sexual- This requires the production of both male and female sex cells, sperm and egg, in reproductive organs.
    • Asexual- this doesn’t require sex cells. And one parent can reproduce an exact genetic copy of itself.
    • Plants use both in order to reproduce.
  • 3. Asexual vs. Sexual Reproduction
    • A lot of plants use asexual reproduction to reproduce. Like potatoes and grass.
    • They can do this because their cells have the ability to reproduce a whole organism with out the need for sex cells.
    • Sexual reproduction, needs sex cells to happen. One way that a plant sperm and egg meet is by an insect carrying pollen to another plant or the wind can do this as well.
  • 4. Sexual Reproduction
    • Sex cells need to join and fertilize each other inside of sex organs.
    • Some plants can have both male (sperm) and female sex organs (eggs), and can reproduce sexually by themselves.
    • Some plants, like holly plants, only have either male or female organs and have to be close to another holly plant in order to reproduce.
  • 5. Plant Life Cycle H.W. pg 277 ques 1-4
    • There are 2 stages to the plant life cycle:
    • Gametophyte stage- here sex cells undergo meiosis to produce haploid cells called spores. These spores undergo cell division and form new sex cells.
    • Sporophyte stage- here fertilization occurs, and 2 haploid sex cells (male and female) join, to give a new diploid offspring.
  • 6. Seedless reproduction
    • Plants like ferns that do not have seeds reproduce using spores. They produce haploid spores that are covered with a spore case, to protect them.
    • When the cases break open they can then fertilize other sex cells and reproduce.
    • H.W. read about the moss and fern life cycles and do ques. 1-4 on pg 281
  • 7. Seed plant reproduction (angiosperms & gymnosperms)
    • Here male organs produce sperm in the form of pollen. The pollen can then be carried to the egg in the female organs by wind, insects, water, etc…
    • When they become fertilized that is called pollination.
  • 8. Pollination
    • After fertilization of the egg by the pollen, the egg develops into a seed, or an embryo, that contains food and a hard protective coating.
    • This embryo eventually develops into the new plants stems, roots, and leaves.
    • The stored food in the seed allows the plant to grow more rapidly than a spore.
  • 9. Gymnosperm reproduction
    • Firs, cedars and pines all produce both male and female cones.
    • The smaller male cones contain the pollen and the larger female cones hold the eggs in a ovule.
    • When they interact by wind or insects they pollinate.
  • 10. Angiosperm Reproduction
    • Angiosperms are flowering plants that produce seeds.
    • Flowers are important b/c they hold the reproductive organs that produce the sperm and eggs of angiosperms.
  • 11. Flower structure
    • Sperm is made as pollen in the Stamen of a plant. The stamen contains an anther and a thin stalk called a filament.
    • Female organs are located in the pistil, which contains a stigma at its tip that is sticky and allows pollen to land on it.
    • The plants style, runs down from the stigma and leads the pollen to the ovary, which holds the ovule that makes the eggs.
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  • 14. Plant Germination H.W. pg 300 ques 1-10
    • The growth of a plant from a seed to a mature plant is called germination
    • All plants germinate at different rates, some slow some fast.
    • This rate also depends on the environmental conditions that the plant is in.
    • Temperature, amount of water, and light all effect germination of plants.