Page 117 - The Cell in 40 Topics

Harun Yahya - Adnan Oktar

recognizes the NO and permits it to pass through. The NO molecules en-
tering the cell are immediately located by a special enzyme known as GC,
and transmit their vitally important messages. A series of complex chemi-
cal reactions are thus initiated inside the cell (Figure 92).
These proteins, which we referred to as messengers, are molecules, a
mere 0.0000001 millimeter in size. These molecules work like a mail carrier,
finding the enzyme GC to which the messages they carry are “addressed.”
The message is forwarded to the correct enzyme, every single time. In ad-
dition, these messenger molecules’ lifespan is very limited, yet they never
make any errors of timing. The message-bearing NO molecules have no
compasses or other devices to help them find their way, yet they never be-
come lost.
During this process, the speed of the NO molecule is reminiscent of
communications established by Internet technology, or e-mail. NO acts just
like an electronic postal system, transmitting a great many messages to
their correct destinations at a very high speed.
The GC in the flat-muscle cells, receiving the messages carried by the
NO, then goes into action. This worker enzyme’s duty is to convert GTP, an
energy-carrying molecule, into cGMP. The many reactions taking place
during this process have not yet been fully understood (Figure 93).
To explain it as simply as possible, as a result of the enzyme activities,
the calcium concentration in the muscle cells decreases, leading to the
fibers separating and the muscle cells expanding. In this way, the veins
themselves expand. The message carried by the NO molecules play a vi-

Figure 92.
NO molecules transmit
vitally important mes-
sages to a special en-
zyme called GC.

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