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Because proteins are made up of amino acids and amino acids have both an NH2 group and a COOH group. Amino acids are zwitterions because the NH2 group protonates and the COOH group deprotonates, giving a molecule where one part has a positive charge and another has a negative charge.

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Q: Why does protein exist as a zwitterion?
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Related questions

What is the structure of protein that can account for buffering?

the ionized species or the zwitterion


How do you use zwitterion in a sentence?

A zwitterion is a ion that has both a positive and a negative charge. To use it in a sentence, you might say that "a zwitterion is basically a hybrid ion that you may learn about when you study physics."


What happens when a base is added to a zwitterion?

If is going to donate electrons


What do you call ionized amino acids?

Zwitterion - amino acids are the most common form of zwitterions. it basically means that the ion has two charged atoms that cancel each other out. Just look up zwitterion on wikipedia


How many different types or protein monomers exist?

20


What measures exist to prevent C-reactive protein from forming in the bloodstream?

As of 2005, there are no precautions regarding the C-reactive protein test.


What is an amphoion?

An amphoion is another term for a zwitterion, a molecule such as an amino acid, which has both a positive and negative charge.


Is nitrogen used in everyday life?

ALL protein requires it to exist. (But as a gas, no.)


How is it possible for so many different proteins. To exist?

A variety of proteins exist for two reasons primarily. The human genome contains 20,000 - 30,000 protein encoding genes, each of which directly encode a protein. In addition, each of these protein products may be modified and/or spliced to generate many novel additional protein product combinations.


At Ph 10 what charge would Zwitterion ion have?

it would depend on amino acid in question. pH above amino acid pI, zwitterion will carry net negative (-) charge. at pH below pI, zwitterion will carry net positive (+) charge. depending on the amino acid, some have more than one acidic or basic functional group. such functional groups can make the amino acid vary in net charge from 2- to 2+ if not more.


What would happen if you didn't have RNA?

the mRNA wouldn't code for the right protein, or maybe might not even code for a protein at all


Does protein exist in cauliflower?

Yes, about 2 grams in every 3.5 ounces of cauliflower.