Where do fungi fit in the tree of life?
[ 2006-03-27 15:54 ]
|
Although life forms in the Fungus Kingdom (molds,
mushrooms, and yeasts) may seem like plants, they are
actually more closely related to animals. In the history of
life, fungi and primitive animals branched apart after
plants had evolved.
Like some kinds of animal cells, the cells of fungi are
surrounded by walls made out of chitin, a complex molecule
made of sugar and nitrogen. Plants use cellulose
for their cell walls.
Fungi get their energy by breaking down organic
molecules which they soak up directly from their
environment. They emit substances that chop complex organic
molecules into smaller ones that are easy to absorb. Fungi are
vital to the global ecosystem because they are so good
at breaking down anything organic. |
真菌王國(霉菌、食用傘菌、酵母菌)
分支
真菌的細胞被角質的細胞壁包圍著，而這些角質的細胞壁都是由糖和氮的復雜分子組成的。
纖維素
破壞有機分子
全球生態(tài)系統(tǒng)
| | |
|
