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Plant Reproduction Asexual- one parent= clone Sexual- two parents= unique 2.

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Presentation on theme: "Plant Reproduction Asexual- one parent= clone Sexual- two parents= unique 2."— Presentation transcript:

1 Plant Reproduction Asexual- one parent= clone Sexual- two parents= unique 2

2 Todays Objectives Plant reproduction video clip Asexual reproduction in plants –Types Sexual reproduction in plants –Plant/flower parts involved –Pollination/Fertilization –Pollination BrainPop Compare asexual and sexual reproduction –Benefits and drawbacks of each Graphic organizer for assessment 6/13/2014

3 Asexual & Sexual Reproduction- Plants Notes Questions Vocabulary words Formulas Main Ideas Possible Test Questions Summary of the notes and information learned

4 Differences in Reproduction Asexual –Only one parent involved –Offspring is genetically identical to parent –No variation = less adaptation and evolution –Examples: Plantlets Rhizomes Tubers Cuttings Sexual –Two parents involved –Pollination forms a seed –Offspring is NOT genetically identical to parents –Offspring is a combination of genetic information from both parents –Allows for variation and adaptation

5 Asexual Reproduction Also known as vegetative propagation Many plants produce new plants without seeds; without the mixing of two parents genetic material The offspring are genetically identical to the parent; they are clones!

6 Asexual Reproduction Plantlets

7 Asexual Reproduction Cuttings

8 Asexual Reproduction Tubers and Rhizomes

9 Asexual Reproduction Runners

10 Asexual Reproduction See our examples on the window sill.

11 Sexual Reproduction In sexual reproduction a new individual is created from a fusion of gametes (egg cell and sperm cell) from two parents. Genetic material is combined and offspring may vary from parents. Genetic variation allows for adaptation and evolution of the species over time

12 Sexual Reproduction Flowers are the main portion of a plant involved in reproduction. Lets build some flowers! Work w/lab partner but create a flower for each student Use template provided; materials are on back table Glue into lab book when complete

13 Sexual Reproduction

14 For sexual reproduction to take place two steps must occur: Pollination Fertilization

15 Sexual Reproduction Pollination is the transfer of pollen from the male part of a flower to the female part Depending on species of plant, can be: on the same flower, a different flower on the same plant, or a flower on a different plant of same species Which of these three types of pollination would allow for genetic variation?

16 Sexual Reproduction Wind or larger animals often help pollinate flowers by moving pollen around from one place to another, but the major pollinators are insects- bees, flies, wasps, butterflies, etc.

17 Sexual Reproduction

18 Fertilization is the fusion of the male and female gametes The pollen transfers down the pistil and into the ovary where it combines with the ovule The ovule becomes the seed The ovary becomes the fruit

19 Sexual Reproduction Pollination/Fertilization BrainPop!

20 Pros and Cons of Each

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22 Differences in Reproduction Asexual –Only one parent involved –Offspring is genetically identical to parent –No variation = less adaptation and evolution –Examples: Plantlets Rhizomes Tubers Cuttings Sexual –Two parents involved –Pollination forms a seed –Offspring is NOT genetically identical to parents –Offspring is a combination of genetic information from both parents –Allows for variation and adaptation

23 Todays Assignment Were going to use a graphic organizer (T-Chart) to explain, compare and contrast, and illustrate the two types of plant reproduction. When complete use the attached rubric to grade yourself and then turn in to bin.

24 Make it a great day Mustangs!


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