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Which parts of the surface of the protein would be composed of polar amino acids(in the diagram below)?

1. I and II only
2. II and III only
3. III and IV only
4. I and IV only

This question is part of Unit 3 The Chemistry of Life
Asked by Kris_french, Last updated: Mar 27, 2020

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2 Answers

Markda John

Markda John

Answered Jan 02, 2018

This question has the wrong diagram. As of December 27th, 2017, the diagram shows different compounds. It does not show a protein transport channel with numbered places. Therefore, I cannot answer this question correctly. However, I can say that the polar amino acids would be on the edge of the cytoplasm and right beside that.

The polarity of the amino acids would give the cell membrane a pocket inside that is hydrophobic (IE, it repels water incredibly well) while the cytoplasm and the outside parts of the cell membrane are hydrophilic (they love water). This channel allows proteins and other items that are small enough to squeeze through the membrane without any help from the cell, also known as passive diffusion.

 

John Smith

John Smith

Answered Jan 05, 2017

I and II only
 

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