Question

question 3 which of the following describes how phospholipids are positioned in the double layer cell membrane? a hydrophilic phosphate heads face inside and outside the cell b hydrophobic phosphate heads face into each other inside the cell membrane c hydrophobic fatty acid tails face inside and outside the cell d the phospholipids lie end to end phosphate head to fatty acid tail

Explanation:

Phospholipids in the cell membrane form a bilayer. Their hydrophilic phosphate heads interact with aqueous environments inside and outside the cell, facing outward. Hydrophobic fatty acid tails face inward, away from water.

Answer:

a. hydrophilic phosphate heads face inside and outside the cell