There are  3) ________ of amino acids needed to fulfill all of these functions, but only 4) _____of them are essentialGroup of answer choices20 types22 types21 types23 types

How many different AMINO ACIDS are there that all living organisms use?Group of answer choices1220344664

How many amino acids are there?Group of answer choices4201,00010026

Which of the following statements is correct? A) There are 20 essential amino acids for humans B) The amino acid with which protein synthesis begins is always arginine C) All amino acids have polar side chains D) All amino acids have an asymmetric carbon atom E) The amino acids cysteine and methionine contain a sulfur atom

Amino acids are important in the synthesis of many ______, such as insulin and glucagon.Multiple choice question.hormonesbuffersproteinsenzymes

Draw (by hand) the condensed structures of the 20 common amino acids. Classify them according to the following:Nonpolar (hydrophobic)Polar (hydrophilic)BasicAcidicFor each amino acid, give the following:Condensed structureCommon name3-letter symbol1-letter symbol