Page 77 - The Miracle in the Cell Membrane

Harun Yahya (Adnan Oktar)

water-based cells out side. The hydro pho bic "tails" are
squeezed between the hydro pho bic sur fa ces of the cell
mem brane.
This arrange ment is most impor tant, because the
phos phate parts of the phos phol i pids being on the out -
side makes the pas sage of water pos si ble, one of the cell's
basic needs. Were the phos phate parts on the inside, the
hydro pho bic lip ids would repel the water, which would
be una ble to con tact the mem brane and enter the cell. In
that case, chem i cal reac tions with in the cell would fail to
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take place, and life would be endan gered. Due to their
hydro pho bic struc tures, phos phol i pids are not per me a -
ble to such water-sol u ble con tents of the cell as sugar,
amino acids and other organ ic acids. This, as we shall be

Micelle Air

Water
Sequence of molecules in the
single-layer phospholipid layer
Water

Phospholipids form micelles—small insoluble
particles made up by fat molecules—in water.
Water
The water-attracting (hydrophilic)
part attached to water
Sequence of molecules in the
double-layered phospholipid layer
Water-repellent
(hydrophobic) tail
remaining in the This sequence of the cell membrane is of the
inner part of the cell greatest importance, because the phosphate
part of the phospholipids makes possible the
passage of water, one of the cell's basic needs.

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