Page 137 - Genesis: Book of Beginnings and Science Behind it
P. 137
GTP-transducin-activated rhodopsin now binds to a protein called phosphodiesterase, located in the
cell's inner membrane. When attached to activated rhodopsin and its entourage, the
phosphodiesterase acquires the ability to chemically cut a molecule called cGMP (a chemical relative of
both GDP and GTP). Initially, there are a lot of cGMP molecules in the cell, but the phosphodiesterase
lowers its concentration like a pulled plug lowers the water level in a bathtub.
Another membrane protein that binds cGMP is called an ion channel.
It acts as a gateway that regulates the number of sodium ions in the
cell. Normally, the ion channel allows sodium ions to flow into the cell
while a separate protein actively pumps them out again. The dual
action of the ion channel and pump keeps the level of sodium ions in
the cell within a narrow range. When the amount of cGMP is reduced
because of cleavage by the phosphodiesterase, the ion channel closes,
causing the cellular concentration of positively charged sodium ions to
be reduced. This causes an imbalance of charge across the cell
membrane, which causes a current to be transmitted down the optic
clix
nerve to the brain. The result, when interpreted by the brain, is vision.
Be Grateful for the Intelligent Design of your eyes
https://www.youtube.com/watch?v=kboUBQnMP8w
Let's ask ourselves a couple of questions:
1. Is this an extraordinary and complex organ in our body? YES! Is it improbable that something this
complex could have happened by chance? YES! ABSOLUTELY!
2. Does the complexity of this organ match specific patterns in other areas of science? (Sodium pumps,
chains of complex enzymes activating or deactivating other chemicals, etc.) YES!
We can conclude, as we did with Mt. Rushmore, that the eye was created by a
designer of tremendous intelligence.
Dr. George Marshall, an eye-disease researcher from the University of Glasgow,
Scotland, said when asked, "How do you react to the notion that the human eye is
the product of evolution? (chance)"
The more I study the human eye, the harder it is to believe that it evolved. Most
people see the miracle of sight. I see a miracle of complexity when viewing things at
100,000 times magnification. It is the perfection of this complexity that causes me to
clx
baulk at evolutionary theory.
How do we detect creative design?
Imagine a room in which a body lies crushed, flat as a pancake. A dozen detectives
crawl around, examining the floor with magnifying glasses for any clue to the
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