Page 90 - A Chain of Miracles

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A A Chain of Miracles

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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
Thylakoids process, which we
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
Calvin cycle
the Earth with oxygen
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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