BIOL 103

Sample Questions– Exam 4 solved test updated solution 2020 1) Which of the following about membrane phospholipids is NOT true? a) They associate to form bilayers b) They have hydrophobic tails c) They have hydrophilic heads d) They give the membrane fluidity e) They readily flip-flop from one side of the membrane to the other 2) The main difference between a cell that responds to a signal and the one that does not is the presence of a a. DNA sequence that binds to the signal b. ...