Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Introduction to plant reproduction


Published on

  • Be the first to comment

Introduction to plant reproduction

  1. 1. Introduction to Plant Reproduction: Sexual and Asexual Reproduction<br />8SCIENCE, Thurs. March 3rd<br />
  2. 2. What is reproduction?<br />Compare a human with a plant<br />We don’t have leaves or roots and a plants do not have a heart or brain<br />BUT we are alike in many ways<br />Plants and animals (and humans!) can make similar copies of ourselves<br /><ul><li>Called reproduction
  3. 3. Two types: asexual and sexual reproduction</li></li></ul><li>How plants reproduce: Sexual reproduction<br />Sexual reproduction in plants is similar to animal sexual reproduction:<br />Requires fertilization<br />Combine egg and sperm cells<br />Like in animals, egg cells are produced in female reproductive organ and sperm in the male reproductive organ<br />Meiosis creates these cells<br />
  4. 4. How plants reproduce: Sexual reproduction<br />Review: Meiosis produces 4 sex cells with half the number of chromosomes of original cell<br />Sex cells are also called GAMETES<br />Have HALF the number of chromosomes, called HAPLOID<br />Male/female reproductive organs can be on the SAME or SEPARATE plants<br />Most plants depend on animals for fertilization, to help get the egg and sperm cells together<br />Usually a SEED develops <br />In some plants a SPORE develops<br />
  5. 5. How plants reproduce: Asexual reproduction<br />Some plants do NOT produce seeds – Can you think of some fruits/vegetables that do not have seeds?<br />Seedless oranges, grapes<br />How do these plants reproduce?<br />ASEXUAL REPRODUCTION!<br />Most plant cells can grow into other types of cells, and a NEW plant may be produced from PART of the plant<br />
  6. 6. How plants reproduce: Asexual reproduction<br />Growers cut part of the plant and re-plant it somewhere else<br />It is genetically IDENTICAL to the original plant<br />Called DIPLOID because it has DOUBLE the number of chromosomes than in sex cells<br />People have been doing this for hundreds of years<br />