Question

question
the phosphate - containing group on a phospholipid generally has a______charge at biological ph levels.
select the correct answer below:
positive
negative
a or b
neither a nor b

Explanation:

Phospholipids have a phosphate - containing group. At biological pH (around 7.4), the phosphate group (\(PO_4^{3 -}\)) loses protons. The phosphate group in phospholipids is deprotonated at biological pH. A deprotonated phosphate group has a negative charge.

Answer:

negative