Asked Jan 30, 2019

what are the types of amino​ acids?


Expert Answer

Step 1

Classification of amino acids. 

Step 2

Amino acids are the organic compounds containing an amine functional group and a carboxyl functional group with a side chain (R group). The side chain is characteristic for each amino acid. They are the building blocks of proteins. There are 20 different amino acids which include alanine, arginine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalaine, proline, serine, threonine, tryptophan, tyrosine, and valine.

Step 3

Classification of amino acids- Amino acids are classified based on their structure and and role in nutrition.

1. Classification based on the structure- Based on the structure of their side chain or the R-group, the amino acids are classified into-

  • Non-polar amino acids- They are hydrophobic with an R-group either containing a alkyl group or an aromatic group. They include Glycine, Alanine, Valine, Methionine , Leucine , Isoleucine, Proline , Phenylalanine, Tryptophan
  • Polar amino acids- They are made up of different polar groups like the amines, alcohols or acids as their R-group. They are hydrophilic and further d...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in



Related Biology Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: Digestive enzymes supplements are the only type of enzyme supplements that are effective in the body...

A: Enzymes are biocatalysts that speed up the reaction. Digestive enzymes are the enzymes produced by t...


Q: 6 What is the purpose of the control prepared in step #9 above? EXERC 7 You dilute your bacteriophag...

A: Dear student, as you have not mentioned the question number to be answered, we are entitled to answe...


Q: Describe how the circulatory and respiratory systems are anatomically interconnected and physiologic...

A: The respiratory system is the biological system that consists of specific organs and structures used...


Q: What evolutionary mechanisms might produce adaptations? I know natural selection is one of them

A: Adaptations are the changes which are brought about in different organisms with reference to those i...


Q: What components of the nervous system are directly affected by meningitis?

A: The nervous system is the network of neurons and nerve fibers that functions to transmit nerve signa...


Q: what is tested by an experiment?

A: An experiment is a step-by-step procedure that can be performed by any individual. It involves plann...


Q: What are some of the other bacterial pathogens that can cause pneumonia and what would cause “walkin...

A: The questions ask about the other pathogenic bacteria which cause pneumonia. The cause of walking pn...


Q: 2. A red snapdragon is crossed with a white snapdragon plant. Red pigment is incompletely dominant a...

A: Sometimes, a cross between organisms with two different phenotypes produces offspring with a third p...


Q: Voges Proskauer test Does color of the medium change to red after both reagents were added and allow...

A: Biochemical method of bacterial identification is a classical method that is used for the characteri...