Which of the following structural arrangements of the components in biological membranes facilitates the cell membrane's property of selective permeability?

The correct answer is- proteins embedded into two layers of phospholipids

Explanation:

The plasma membrane is a mosaic of many components like phospholipids, proteins, carbohydrates, and cholesterol. This mosaic nature of cell membrane gives a fluid character to the membrane.

So due to this fluidity, the proteins present in the membrane can do movements like flip flop which helps in the movement of molecules across the membrane.  

These proteins are called transporter which gives the property of selective permeability to the cell membrane because they bind specifically to some molecules and allow them to cross the cell membrane.

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.