Page 177 - Photosynthesis: The Green Miracle
P. 177
Harun Yahya
release an energy in as little as 1 millionth of a second. This energy flows
from one pigment molecule to another, which are arranged in a sequence.
(See diagram on Page 178.)
At this stage, the chlorophyll that has lost one electron assumes a
positive electrical charge, and the receptor molecule that accepts the elec-
tron bears a negative charge. The electrons pass into what’s known as the
electron transfer chain, made up of carrier molecules, moving down from
one carrier molecule to another. Each carrier molecule has a lower energy
level than the one before it, as a result of which the electrons release their
energy as they move down the chain.
To better understand this phenomenon, compare it to a hydroelectric
station. The falling water in this station powers an electricity generator.
The greater the height from which the water falls, the more energy will be
obtained. However, two pumps are used to keep the water flowing from
a high level, worked by panels that collect solar energy, which are located
in two strategic positions to set the entire system in motion. Of course this
is a much simplified analogy. Even if we managed to construct this sys-
tem, we would still encounter a major problem in converting the energy
from the solar panels into electrical energy to run the pumps. Yet in per-
forming photosynthesis, plants do so with an expert design and in a per-
fect manner.
In order for this photosynthesis system to function, the water must
be broken down in the internal area of the thylakoids, which are sacs in
which photosynthesis take place. Thus the electrons will pass along the
membrane to the stroma where it will be reduced to NADP+ (nicotinam-
ide adenine dinucleotide phosphate, a molecule with a high-energy
charge receiving an electron for Photosystem I during photosynthesis).
However, since water is not easily broken down, there is a need for pre-
cise organization and co-operation in this region. Energy needed for this
process is obtained from the solar energy that enters the equation at two
points. At this point, the water electrons are exposed to a “propulsive”
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