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attempts left Check my work Phosphoacylglycerols should remind you of soaps. In

ID: 1047085 • Letter: A

Question

attempts left Check my work Phosphoacylglycerols should remind you of soaps. In what ways are these compounds similar? Select all that apply. Both compounds have hydrophilic and hydrophobic components Both compounds have a hydrophobic "tail", which consists of one or two short hydrocarbon chains, and is small in size compared to the hydrophilic region. Both compounds have a large nonpolar region that consists of only C-C and C-H bonds and exhibit only van der Waals interactions. Both compounds have a large ionic "head" that is composed of a sulfate group and a sodium ion. Both compounds have an ionic "tail" that is attracted to polar solvents like H20 Both compounds have an ionic "head" that is small in size compared to the hydrophobic region. Report problem Hint

Explanation / Answer

soaps and phophaglycerols are both derivatives of fatty acids with long hydrophobic tails and a polar head group.

Their similarities can be listed as, (I have discussed each of the options given above sequentially. The correct options are highlighted in bold)

a) This is correct. Both compounds have hydrophobic and hydrophilic parts

b) This option is wrong. It has a long hydrophobic tail and small polar head group.

c) This is correct. Both compounds have large non-polar region that has only C-C and C-H bonds and exhibits only van-der-waals forces.

d) This is wrong. Both compounds do not have a large ionic head with a suphate group and sodium ion. Soap has a carboxylic acid terminal with sodium ion and phosphoglycerols have phosphates in their ionic head groups.

e) This is wrong. Both compounds do not have an ionic tail, rather a hydrophobic non-polar tail.

f) This is correct. Both compounds have an ionic head that is small in size compared to the hydrophobic tail.