32. (5 pts) The molecule below is ethanolamine. It is a common polar head group

Question

32. (5 pts) The molecule below is ethanolamine. It is a common polar head group on bacterial phospholipids. a. Circle EACH ATOM (single atoms not groups of atoms) that participates in Hydrogen bonding. H 2.1 . C 2.5, S 2.5, N 3.1, O 3.5. Electronegativity values are: b. For each of the following, write T (True) or F (False) and very briefly explain why. Ethanolamine would be found in the i) i.e.fatty acid tails of lipids ii) nuclear membrane of bacteria ii) plasma membrane of bacteria iv) in proteins Fbecause it is polar

Explanation / Answer

ii)T - Nuclear membrane also called as the nuclear envelope, is composed of a bilipid layers,which encloses the nucleus.

As we all know bilpid layes have polar molecules and nonpolar tails to make them impermeable,so the nuclear membrane may contain ethanolamine.

iii) T-Again plasma membrane of the bacteria is composed of phospholipid bilayer, which contains ethanolamine.

iv) F - proteins have non polar side chains , which is present in the inside, so as to prevent them from getting dissolved.

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