Can someone please help me answer the questions above and explain why did you pi

Question

Can someone please help me answer the questions above and explain why did you pick that answer?

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What is the major difference between the center of a liposome (vesicle) and a micelle? a. Both are nonpolar, but liposomes have longer fatty acid chains. b. Micelles contain large void volumes whereas liposomes are well packed c. A liposomes center contains a polar environment, while the micelles have a nonpolar interior d. One is round due the spectrin and ankyrin and the other is square due to the single chain fatty acid chains e. Liposome centers are more dense than centers of micelles. Why can/can't amino acids penetrate a membrane? a. Amino acids readily incorporate into a membrane, so they do not pass through. b. Amino acids are charged at physiological pH, so they do pass through. c. They are not small or neutral enough to simply diffuse through the membrane Why cancan't mino acids penetrate a membrane? e. None of the above

Explanation / Answer

1. a. Both are nonpolar, liposomes have longer fatty acid chains than micelles. ------------> FALSE (liposomes have aqueous interiors and exteriors, whereas micelles are completely non-polar).

b. Micells contain large void volumes whereas liposomes are well packed ---> FLASE

C. A liposome center contins a polar environment, while the micelles have a non-polar interior. ---------> TRUE (This is the major difference between micelles and liposomes).

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