S.+Angiosperms+Repro.+(38)

toc =General Overview:= media type="youtube" key="rq6uIU7NP34" height="315" width="560" Our favorite brightstorm man explains plant reproduction as a whole (there is some emphasis on the parts of the angiosperm though). = = =__**Target III-A: Explain alternation of generations in Angiosperms**__= [|Great animation to explain alternation of generations in angiosperms] Make sure you listen to the narrated version. media type="youtube" key="eTKItqO8YlI" height="315" width="420" Nice video to explain alternation of generations in angiosperms! [|Quia cloze on the Alternation of Generations]

=__**Target III-B: Identify and stating the function of all flower structures**__.= Watch this video below to review (if necessary), then take the interactive quizzes and games to test your knowledge! media type="youtube" key="I4op6hU3IhI" height="315" width="420"

Flowers are organized in whorls: Sepal, Petal, Stamen, Carpel Flowers can be described as:
 * complete if the flower has all four whorls.
 * incomplete if the flower lacks one or more whorl
 * perfect if the flower has both stamen and carpel
 * imperfect if the flower lacks either stamen or carpel

[|Quiz on the parts of the flower] [|Another quiz]

=__Target III-C: Describe the structure and developmental location of the male and female gametophyte__=

Anther, Filament, Stamen, Carpal, Stigma, Style, Ovary, Ovule, Sepal, Petal
 * __Label the above idealized flower with the following terms:__**

Chapter 38 Angiosperm Reproduction and Biotechnology




[|After reviewing the diagram, take this quick quiz!]


 * [|Heres another Quiz]**

= = =__**Target III-D:Differentiate pollination and fertilization**__= Pollination is when pollen attaches to the stigma.

Fertilization only occurs after pollination. However, pollination doesn't necessarily mean a plant has been fertilized. In order for the two polar nuclei and and to be fertilized, two sperm form from the generative cell (1n) through mitosis and travel in the pollen tube, which is formed from the tube cell, through the style and reach the ovule. Then, the ovule is then fertilized through double fertilization where one sperm fertilizes the egg forming a zygote and the other sperm fertilizes the two polar nuclei forming the endosperm (3n).


 * Fill In the Blanks**

Highlight word blanks to see answers!
 * **Words**

Anthers Pollination Microsporangia Microspores Carpal Stigma Megaspores Ovules ||  || Pollen developed from microspores within the microsporangia of anthers. Female gametophytes develop from megaspores within ovules. Pollination, which precedes fertilization, is the placing of pollen on the stigma of a carpal.

[|Quia cloze on pollination/fertilization]

=__Target III-E: Describe double fertilization__= media type="youtube" key="bUjVHUf4d1I" height="315" width="420" media type="custom" key="11977801" [|Double Fertilization! Make sure to click the narrated version during the animation to get a better understanding.] = = =__**Target III-F: Describe the fate of the ovule and the ovary after double fertilization**__= Seeds develop from the ovules..... ....// Fruit develops from the ovary //

Here's a video showing how an apple flower becomes the actual apple fruit media type="youtube" key="bwCpQflmQG4" height="315" width="420"


 * = **TYPE:** || **Simple eeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ** || **Aggregate eeeeeeeeeeeeeeeeeeeee ** || **Multiple eeeeeeeeeeeeee ** || **Accessory eeeeeeeeeeeeeeeeeeeeee ** ||
 * **DEVELOPMENT:** || derived from 1 carpel or several carpels || results from a single flower with more than 1 separate carpel, each forming a little "fruitlet" || develops from an __//inflorescence//__ -a group of tightly clustered flowers that eventually fuse together || other parts of the flower (not just the ovary) contribute to the fruit. ||
 * **EXAMPLES:** || (dry) pea pod, nuts (fleshy) nectarine || raspberry, blackberry, strawberry || pineapple || apple ||
 * [|Quia quiz to review! Try not to look at chart =)] **

=__Target III-G: Compare and contrast monocot and dicot seed structure and state the function of seed parts__= Diagram from campbell on seed structure: Try the quiz without looking at the diagram: Quiz = = =__Target III-H: Describe selective advantages related to fruit form and seed (offspring) dispersal__= Some good examples of the variety of seed dispersal mechanisms: media type="youtube" key="zbQ1jWl3AOM" height="315" width="420" Now, try a quiz media type="custom" key="11996295" Fill in the blanks below**:** =**__Target III-I: Describe advantages and disadvantages for both sexual and asexual reproduction in plants__**=
 * || Advantages || Disadvantages ||
 * Asexual || ** -no need for pollinator **
 * -if plant is well suited for environment, creates clones that are also well adapted **
 * -cloned plants are more sturdy than seedlings ** || ** -increased risk for local extinction if environment suddenly changes **
 * -less genetic diversity ** ||
 * Sexual || ** -genetic diversity **
 * -seeds disperse offspring to distant locations **
 * -seeds can remain dormant until environment becomes favorable **
 * -allows plants to adapt to unfavorable environments ** || ** -energy consuming **
 * -many seeds produced to ensure small fraction of seedlings that survive will mature **
 * -decreases survivability of parent ** ||