24 January Science 7 Dissection of Flowers

Systematically record and dissect the flower(s) you are provided. 

Take a flower apart. Examining each “piece.” Think of the flower as a puzzle, where each piece fits together in a certain way. Do this carefully, imagining that you could put it back together in exactly the same way you found it. Imagine what the function of each “piece” is. Check your ideas against the references linked below (websites and videos).

PLAN BEFORE YOU CUT. READ THE REST OF THE DIRECTIONS.

Be careful with the dissecting tools. Use the microscopes properly. If you do not remember how, ask.

Make a display with photos and sketches. Count parts. Measure. Provide a scale. Describe shapes and structures. If you know the name, that is fine. If you do not, simply describe. Discuss the possible function of each structure. How would you guess that the flower(s) is(are) pollinated? Why?

Use pic collage (ap) to arrange your photos into a display. Send the file to mpeter@aes.ac.in who will print and laminate your poster.

Use the magiscope for a magnified view. With help, use the compound microscopes to get a more magnified view. If pollen is present, try to get a view of a pollen grain. Use the microscopes as directed. Make sketches, take photos, include labels and descriptions.

Notice the numbers in the pictures below!  See the 3’s and 6’s. This pattern is characteristic of monocots–the large group of flowering plants that includes grasses, palms, lilies, aroids.

 

Useful links: http://www.flowersofindia.net/

*Flower partshttp://www.flowersofindia.net/misc/flower_parts.html

*Flower shapeshttp://www.flowersofindia.net/flowershapes/

*A useful referenceflowerstructurepdf

http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artjul99/pollen.html

Pollination videos and websites:

Make a note of these links. We will look at them as a class and you will need to review them (periodically) on your own or in a small group.

The Continuity of Life

http://rfrazier.msblogs.aes.ac.in/files/2012/04/The-Continuity-of-Life2.pdf

What Darwin Never Knew

https://www.youtube.com/watch?v=OV27qy6Gfb4

A Confusion of Names from Botany: A Blooming History

https://www.youtube.com/watch?v=cVDpdmlpZKw

Sexual Encounters of the Floral Kind

 

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