Question 3 One of your classmates, Mike, is working on a new science fiction novel. He approaches you with questions regarding cell membranes a)Explain the following to Mike iWhat are lipids ii)Why are saturated fatty acids more likely to be solid at room temperature than unsaturated fatty acids b)On the diagrams below label the hydrophilic and hydrophobic regions of the phospholipids CH2-CH2-CH2- CH2-CH2-CH2-CH2-CH2-CH2-CH CH CH 2- CH2 -CH CH- CH CH2- CH2-CH2- CH2 -p-0-cH2 c)Why does the structure of the phospholipid molecule favor the formation of bilayers or membranes? d) Mike proposes the following structure for the membranes of an alien life form. What conditions would need to exist to make this arrangement possible? Portion of alien membrane 7012Fall20037.012 Fall 2003 3 Question 3 One of your classmates, Mike, is working on a new science fiction novel. He approaches you with questions regarding cell membranes. a) Explain the following to Mike. i) What are lipids. ii) Why are saturated fatty acids more likely to be solid at room temperature than unsaturated fatty acids. b) On the diagrams below label the hydrophilic and hydrophobic regions of the phospholipids. P O O O O – – CH2 CH CH2 CH2 CH2 CH2 CH2 CH2 CH2 CH2 CH2 CH2 CH2 CH2 CH2 CH2 CH2 CH2 CH2 CH2 CH2 c) Why does the structure of the phospholipid molecule favor the formation of bilayers or membranes? d) Mike proposes the following structure for the membranes of an alien life form. What conditions would need to exist to make this arrangement possible? Portion of alien membrane