Autumn Colors the reason the for the season

For our video, we sought out to explain how nutrient translocation occurs. Nutrient translocation explains why trees change colors throughout the year. During the summer, the leaves contain a pigment called chlorophyll. Chlorophyll allows photosynthesis to occur, and is also the reason why the leaves are green. Once autumn comes, the green leaves begin to turn yellow and orange. This occurs because the chlorophyll in the leaves begins to get degraded and in its place two accessory pigments emerge to protect the leaves from oxidation. The two pigments are anthocyanin and carotonin and give the leaves a red or brown color. These pigments remain in the leaves until the leaves are ready to fall off of the tree. When the leaves fall from the trees, the nutrients that were stored in the leaves travel down to the root of the tree, where they are stored during the winter. In the springtime, the nutrients travel back up the root, and green leaves reemerge.

A video on a the cause of the change in leafs during the fall. By Michael Sullivan, Brett M. Warner, and Nicholas Hood.

Category:

Education

Tags:

• Leafs
• colors
• pigments

[jenn1ifer]

that guy sounds like the killer on 'saw'

[SamuelHammer]

Nice work gentlemen. What did you all do to Brett's voice??

Good story line and easy to follow. The carotenoids and anthocyanins are in the leaves all season and as you said, they are masked by abundant chlorophyll. Chlorophyll itself is degraded before it's shunted to the roots, doesn't go down there as an entire molecule.

Good job