A
simple Code of four parts = Life
A
Machine not only does its job but also duplicates itself, producing generations
of machines
to continue the work. Within each of us more than a trillion such perfect
machines carry
on the work of life, a cycle of creation and renewal, an perfect orchestration
of tissues and fluids into a functioning body.
|
The machines are called cells. |
In a cell
(above) the nucleus functions as the control center, containing tightly
packed coils of thread like molecules called deoxyribonucleic acid DNA,
DNA-carrier of the genetic blueprints for an organism. The strands of
DNA in a human cell are less than a trillionth of an inch thick. If unraveled
would stretch out almost two yards. In the nucleus, some of the blueprints
are copied. Then this dispatched like detailed drawings to the factory
of the endoplasmic reticulum. Here tiny shops called ribosomes, built
with proteins and material from the nucleolus. These drawings are used
to assemble amino acids into the proteins that the cell needs. Mitochondria
provide energy for the cell by burning
sugar products. In plant cells chloropiasts use sunlight to synthesize
sugars.
