Which part of the cell membrane is hydrophilic (water loving)?
Question 1 options:

the whole membrane

the fatty acid tail

the phosphate head

none of the above

the phosphate head

Step-by-step explanation:

the phosphate head is hydrophillic

where's the diagrams?

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.