Question 14 Which of the following describes how phospholipids are positioned in the double layer cell membrane? a hydrophobic fatty acid tails face inside and outside the cell b hydrophobic phosphate heads face into each other inside the cell membrane c hydrophilic phosphate heads face inside and outside the cell d the phospholipids lie end to end phosphate head to fatty acid tail

Answer 1

The correct answer is:

c) hydrophilic phosphate heads face inside and outside the cell.

In a phospholipid bilayer, the hydrophilic (water-attracting) phosphate heads face outward toward the aqueous environment inside and outside the cell, while the hydrophobic (water-repelling) fatty acid tails face inward, away from water, forming a double layer.