inal answer:
The orientation of membranes does not change during transport; this statement is false. The phospholipid bilayer's structure is maintained, facilitating flexible and effective transport processes such as facilitated diffusion and active transport. Membrane fluidity is crucial for cellular adaptation to environmental changes.
Step-by-step explanation:
The statement 'Membranes lose their orientation during transport' is false. Biological membranes are composed of phospholipids that form a bilayer, with the heads facing the polar, aqueous environment and the tails facing each other in the non-polar, interior part of the membrane.
Contrary to the assertion, facilitated diffusion does not oppose active transport; rather, they are two different methods by which molecules are transported across the cell membrane. Active transport requires energy to move molecules against their concentration gradient, whereas facilitated diffusion does not require energy and moves molecules along their concentration gradient through specific transport proteins.