Which statement describes the phospholipid bilayer that makes up a cell membrane? The hydrophobic heads point into and out of the cell, while the hydrophilic tails form a layer between the heads. The hydrophobic tails point into and out of the cell, while the hydrophilic heads form a layer between the tails. The hydrophilic heads point into and out of the cell, while the hydrophobic tails form a layer between the heads. The hydrophilic tails point into and out of the cell, while the hydrophobic heads form a layer between the tails.

2b2t

explanation:

2b2t

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.