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Asexual vs. Sexual Reproduction

Asexual vs. Sexual Reproduction. 6.2.6 Differentiate between the processes of sexual and asexual reproduction of flowering plants. What are 3 ways potatoes and onions are alike?. Essential Questions. What is the difference between asexual and sexual reproduction?

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Asexual vs. Sexual Reproduction

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  1. Asexual vs. Sexual Reproduction 6.2.6 Differentiate between the processes of sexual and asexual reproduction of flowering plants.

  2. What are 3 ways potatoes and onions are alike?

  3. Essential Questions What is the difference between asexual and sexual reproduction? What are the structures involved in asexual reproduction?

  4. Sexual Reproduction • A process of reproduction that requires a sperm cell (in pollen) and an egg cell (in the ovule) to combine to produce a new organism. • All flowering plants undergo sexual reproduction.

  5. Asexual Reproduction • A process of reproduction that involves only one parent plant or plant part and produces offspring identical to the parent plant. • Many plants can grow new plants asexually from their plant parts. • If a plant is cut or damaged, it can sprout new growth from the stems, roots, or leaves.

  6. Write 2 new pieces of info

  7. Tubers & Bulbs • These are all types of underground stems. • The “eyes” or buds of tubers, for example potatoes, grow into roots and shoots to produce a new plant.

  8. Bulbs • Bulbs, for example onions, are big buds made of a stem and special types of leaves.

  9. Draw a bulb. Draw a tuber. Label each.

  10. Runners These are all types of stems that run along the ground. • New strawberries or some ivy grow from the tips of runners. • Many lawn grasses grow from runners. Strawberry Plant

  11. Draw a runner. (Why do people not like crabgrass?)

  12. Stem Cutting • When a piece of cut stem is planted, roots may form from the cutting, and then a full plant develops. • Sugar cane and pineapple are examples of plants grown from stem cuttings.

  13. Roots • Some fruit trees and bushes send up “suckers” or new shoots from the roots. • Some plants have roots that can produce new plants from root pieces, such as a sweet potato.

  14. Draw a sucker.

  15. Leaves • Some houseplants produce little plants right on their leaves. • For example, African violets can produce plants from leaves placed on top of soil. Autumn Sedums

  16. Draw a leaf growing a new plant or a plant growing from a leaf.

  17. Compare & contrast runners & stem cuttings

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