Plant Reproduction

1
Plant Reproduction
2
Define Propagation

• Propagation
• The reproduction of plants either sexually or
  asexually.

3
What is the difference between Sexual
Reproduction and Asexual Reproduction?

• Sexual requires an egg and sperm
• Asexual is vegetative

4
What are the Female parts of the flower?

• Pistil Stigma, Style, Ovary
• Pollen lands on Stigma, travels down style to
  ovary

5
What is a Perfect Flower?

• has Stamen Pistil on same flower
• only one part imperfect

6
What is the difference between a Monoecious and
Deoecious plant?

• Monoecious male female flowers on same plant
• Dioecious male female flowers on different
  plants

7
List and explain the different types of flowers.

• Complete
• Incomplete

8
What is a Complete Flower?

• A flower that has all four major flower parts
  Pistil, Stamen, Calyx, Corolla

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Complete Flowers

• Sepals
• The outer part of the flower.
• In open flowers, the sepals are found at the base
  of the plant.

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PetalsThe brightly colored, soft tissue that
attracts insects.

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What are the other parts of the flower?

• Calyx all the sepals
• Corolla all the petals

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Stamens

• The male part of the flower that has an anther at
  the end of it to produce pollen.

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Pistil

• Stigma
• The opening of the pistil.
• Style
• The tube-like structure that connects the stigma
  and ovary.
• Ovary
• The site of fertilization and growth of the seed.

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Stigma, Style Ovary

15
Explain the difference between a perfect and
imperfect flower

• A perfect flower is one with both the stamen and
  pistil
• An imperfect flower is one that lacks one of the
  sex organs.

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Complete Flower

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What is a Floret?

• basic flower unit

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What is a Spikelet?

• a group of florets

19
What are the types of Inflorescenses?

• Panicle Inflorescence (oats, some grasses)
  branched structure at tip of stem

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What are the types of Inflorescenses?

• Spike Inflorescence (wheat, barley) spikelets
  attached directly to stem.

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What are the types of Inflorescenses?

• Raceme Inflorescence (mustard, rapeseed) single
  flowers attached to stalk or stem.

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What are the types of Inflorescenses?

• Head Inflorescence (sunflower) enlarged stem
  receptacle

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What is a Fruit?

• An Apple or Tomato is considered a fruit. A
  Fruit is a mature ovary.
• Fruits can be fleshy (tomato) or dry (wheat)

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Ovary

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What is Pollination?

• process of transferring pollen grains from the
  anther to the stigma
• plants can be self-pollinated (male female
  flowers on same plant) or cross-pollinated
  (different plants)

26
What is Fertilization?

• when sperm is united with an egg
• pollen lands on stigma, germinates, and grows
  down style to the ovary where sperm fertilizes
  the egg (pollen tube)

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What is Fertilization?

• there are actually two fertilizations. Second
  sperm fertilizes second egg to form the endosperm
  (food for the seed)

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What is Germination?

• The sprouting of a seed.