A cell membrane is a phospholipid bilayer. Which major benefit does the arrangement of lipids in the membrane provide to a cell?

a. The surfaces of the membrane can interact with water solutions.

b. The surfaces of the membrane are nonpermeable.

c. The bilayer makes the cell strong and rigid.

d. The phospholipids help the cell easily change size.

Would really appreciate it, i have an idea but not completely sure

Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis