Plant Reproduction

1
Plant Reproduction

• Chapter 4

2
What is the difference between Sexual
Reproduction and Asexual Reproduction?

• Sexual requires an egg and sperm
• Asexual is vegetative

3
What are the Female parts of the flower?

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

4
What is a Perfect Flower?

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

5
What is the difference between a Monoecious and
Deoecious plant?

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

6
What are the other parts of the flower?

• Calyx all the sepals
• Corolla all the petals

7
What is a Complete Flower?

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

8
What type of flower does the grass plant have?

• has calyx, corolla, pistil, stamen
• any missing parts imcomplete
• perfect incomplete

9
What is a Floret?

• basic flower unit

10
What is a Spikelet?

• a group of florets

11
What are the types of Inflorescenses?

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

12
What are the types of Inflorescenses?

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

13
What are the types of Inflorescenses?

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

14
What are the types of Inflorescenses?

• Head Inflorescence (sunflower) enlarged stem
  receptacle

15
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)

16
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)

17
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)
• there are actually two fertilizations. Second
  sperm fertilizes second egg to form the endosperm
  (food for the seed)