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Answer: the part of a membrane protein that extends through the phospholipid bilayer is primarily composed of amino acids that are non-polar.
In this exercise we will have to use the concepts of biology to explain how the amino acids of phospholipids are composed, so we know what:
The phospholipid bilayer is primarily composed of amino acids that are non-polar. As we are dealing with lipids, we know that they are fats in such a way that they do not bind with water, being called non-polar.
What is a Phospholipid?
The phospholipid is a lipid composed of glycerol, two fatty acid tails, and a head with a group of phosphate chains. Biological membranes normally surround two layers of phospholipids with their tails pointing inward, a structure called a phospholipid bilayer.
See more about phospholipid at brainly.com/question/5793606