Fall colours: it's all about glucose

For some, autumn is the best time of the year.   When you look at pictures like these, it's clear why people enjoy October walks amidst nature's annual fashion show.

According to Science Made Simple, the reds, oranges and yellows of maple trees come from glucose that's left in the leaves after photosynthesis stops. When the hours of sunlight diminish and the nights turn cool, the chlorophyll that gives the leaves their green colour fades away and the trapped glucose, essentially a sugar, turns the leaves into fall's multi-hued display.

Photos by Duilio Zane. 

Related post, from another October:
> To send this to a friend, click on the envelope icon.

No comments:

Post a Comment