Page 51 - Photosynthesis: The Green Miracle

Harun Yahya

vents will expel the used air. Once again, the requisite planning has been
carried out for a complete air-conditioning system to exist, and there is a
perfect division of labor among the leaves. Younger leaves serve as the
motors that draw fresh air into the plant, and older leaves expel the dirty
air.
However, the presence of these engines on their own is not sufficient.

There is also a need for air channels established in line with a specific
plan: While fresh air is drawn in by the younger leaves, it must also be
transported to those areas in the plant where it is needed. To fulfill this re-
quirement, microscopic air-conditioning channels have been installed in-
side the plant to transport air to its very furthest reaches.
Now, to witness the flawless design in Allah’s creation from even
closer up, let’s examine the aeration system in the plant and how the
young leaves function…The job of the young leaves is to absorb the air
when the wind blows, and that of old leaves is to release the air to the out-

side. The working system in this inhalation and exhalation system is ex-
ceedingly complex.
As water evaporates from leaves of this kind, the leaves’ temperature
falls. Since wind increases evaporation, the temperature of the leaf thus
falls even further—a process that becomes even more effective in strong
winds. However, this cooling is not felt to the same extent in all parts of
the leaf. The central regions of the leaf stay warmer than its external sur-

faces. According to researchers, when this temperature differential is
greater than 1 or 2 degrees Celsius, it triggers the oxygen-absorbing proc-
ess.
The triggering takes place in this way: when the inside of the leaf is
magnified, the tissues of young leaves that carry out photosynthesis can
be seen, along with very small pores leading to the loosely packed tissues
underneath them. When the dimensions of these pores reach 0.7 microm-
eters (1 micrometer equals one millionth of a meter), and when the tem-
perature in the leaf rises above 1 or 2 degrees Celsius, gasses begin to flow

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