Page 98 - Die Kette der Wunder
P. 98
DIE KETTE DER WUNDER
When sunlight falls on
Sunlight
a leaf, it is transmitted
along the layers in the
leaf. In the leaf cells,
chlorophylls in the
chloroplast organelles
turn this light into
chemical energy. The
plant securing this
chemical energy im-
mediately uses it to
create sugar as food. It
took scientists until
the mid-20th century
to discover this
process, which we
Thylakoids
have summarized in a
few words. Pages of
Light-dependent reactions chemical reactions
have been written in
order to understand
the process of photo-
Light-independent reactions synthesis, yet still
there are missing links
in the chain. Plants
have been carrying out
this process for hun-
dreds of millions of
years, thus providing
the Earth with oxygen
Calvin cycle
and food. Out of the
10 25 different rays in
the universe, only
solar rays are suitable
for photosynthesis in
plant chlorophylls.
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