Permeability is the condition of being capable of having materials flow into and out of a membrane. the permeability of a cell membrane is determined by how easily a molecule can diffuse across the membrane. usually, only molecules that are fat-soluble can permeate across a cell membrane. why is this the case?
a. water-soluble molecules are nonpolar.
b. water-soluble molecules are too large.
c. cell membranes are composed of a lipid bilayer.
d. cell membranes are composed of cytosol.

C. Cell membranes are composed of a lipid bilayer.

Explanation:

The cell membrane delimits the contents of the cell. A typical cell membrane is largely made up of phospholipids. Other components include the glycolipids, sterols, and proteins. The phospholipids component arrange themselves in a double layer (bilayer), forming a hydrophobic core.

Fat soluble molecules are able to permeate across the cell membrane due to the lipid bilayer components - lipid in itself being a form of fat.

The correct option is C.

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.