Plenoptic
Oct 17 2006, 12:04 AM
| | Alright well the cooler weather is arriving up in the northern states (sadly not in warm Florida) and it's time for the leaves to change color and fall off the trees. I never really wondered though, why they change their color. Well hopefully you know that leaves get their green color from the chlorophyll is the dominant pigment that makes food and it gives the leaf a green color. Other pigments and carotenes also are in a leaf with orange or red or purple or yellow colors. The green though is the dominant color and is the only color shown.
During fall though the change in length of daylight, and change of temperature the leaves stop the food making process and chlorophyll breaks down allowing the other colors to show. Other chemical processes may start up giving a different color as well. Because the food process is stopped the leaves fall off eventually.
Source: http://www.esf.edu/pubprog/brochure/leaves/leaves.htm |
Reply
FLaKes
Oct 17 2006, 09:37 AM
So it is kind of like the bear, the tree goes in hibernation until spring arrives. Because there wouldnt be much sense into supporting the leaves when they will not produce enough food for them I guess.
Reply
arnz
Oct 19 2006, 10:47 AM
Sorta like animals that may come out for particular seasons... they dont come out untill a particular season arrives. Same may apply for myths or kids such as snowman only coming out in winter, or a similar fictional kids story about a "snowman" son
Reply
Similar Topics
Keywords :
leaves autumn- Hacker Leaves Norton Man With $26,000 Phone Bill
- (2)
- After Killing A Rock Star A Us Marine Leaves The C
- (0)
One of the most popular rock stars in Romania was killed in an car accident a month ago by an US
marine who was driving drunk. But now after the investigation has started US embassy sent the marine
away in US before the investigation was concluded. There is a lot of frustation here toward US
regarding this incident. Teo Peter, the founding member of the famous Compact band, was killed
Saturday morning at 4.30 in a car accident in downtown Bucharest, according to the police. The taxi
that was taking 50-year-old Teo Peter home from a music festival was struck violently by...
After Killing A Rock Star A Us Marine Leaves The C
- (3)
http://www.daily-news.ro/article_detail.php?idarticle=3249 One of the most popular rock stars in
Romania was killed in an car accident a month ago by an US marine who was driving drunk. But now
after the investigation has started US embassy sent the marine away in US before the investigation
was concluded. There is a lot of frustation here toward US regarding this incident....
Looking for leaves, change, color, autumn