Figure 38 2 review of an idealized flower
Download
1 / 17

Figure 38.2 Review of an idealized flower - PowerPoint PPT Presentation


  • 101 Views
  • Uploaded on

Figure 38.2 Review of an idealized flower. Pistil. Objective: You will be able to identify and give the function of the parts of a flower. Do Now: Read pages 612 and 613 For each part of the flower, write its function This will take you a few minutes. Male parts.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Figure 38.2 Review of an idealized flower' - breena


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Objective you will be able to identify and give the function of the parts of a flower
Objective:You will be able to identify and give the function of the parts of a flower.

Do Now:

  • Read pages 612 and 613

  • For each part of the flower, write its function

  • This will take you a few minutes


Male parts
Male parts

  • Male part is called the stamen

  • The stamen consist of the anther and filament

  • Anther

    • Carries out meiosis to make pollen

    • Sperm cells are inside the pollen

  • Filament

    • Holds the anther into the air


Female parts
Female parts

  • Female part is called the pistil

  • The pistil is made of the stigma, style and ovary

  • Stigma is sticky to capture the pollen

  • Style is a passageway to the ovary

  • Ovary

    • Carries out meiosis to make eggs

    • The eggs are found within ovules


Objective you will be able to describe the events of pollination and fertilization
Objective:You will be able to describe the events of pollination and fertilization.

Do Now:

  • Read page 616

  • What two things form from fertilization?



Pollination
Pollination distinctive walls

  • Pollination is the transfer of the pollen from the anther to the stigma

  • If the pollen lands on a flower on the SAME plant it is called self-pollination

    • If it lands on a different individual then it is called cross-pollination

  • Pollinators are used to move the pollen




Fertilization
Fertilization distinctive walls

  • Fertilization occurs within the ovule

  • There are actually two sperm cells

  • The first will fertilize the egg and form a zygote

    • This zygote will undergo cleavage to from an embryo


Fertilization1
Fertilization distinctive walls

  • The second sperm will fertilize a 2n cell and form a 3n cell called the endosperm

    • The endosperm is the food source for the embryo

  • This concept of two fertilizations is called double fertilization

  • It is unique to flowering plants.


After fertilization
After Fertilization distinctive walls

  • The ovule itself will harden and become a seed

  • The ovary itself will change and become a fruit

    • The fruit is used for seed dispersal



Objective you will be able to identify and describe the parts of a seed
Objective: distinctive wallsYou will be able to identify and describe the parts of a seed.

Do Now:

  • Read page 618

  • Give examples of fruits that everyone thinks are vegetables.


Figure 38 11 seed structure
Figure 38.11 Seed structure distinctive walls


Seed structure
Seed Structure distinctive walls

  • The embryo consists of the hypocotyl and the epicotyl

    • Hypocotyl becomes the root

    • Epicotyl becomes the leaves and upper part of stem

  • Cotyledon is used as a food source

  • The seed coat protects the seed


Seed germination
Seed germination distinctive walls

  • Once proper conditions are met, the seed will start to germinate.

  • Seed germination depends on water, oxygen and temperature

  • Why not light?


ad