Amino acids are monomers that:Group of answer choiceswhen dissolved in water will have a charged amino and acid groupexist naturally in more than 21 different varietiesexists in nature in beta formwhen dissolved in water, their R groups will all be chargedhas a type defined by their amino group

Amino acids are monomers that:

1. When dissolved in water will have a charged amino and acid group: This is true. Amino acids have an amino group (-NH2) and a carboxyl group (-COOH). In an aqueous environment, the amino group tends to gain a proton to become positively charged, while the carboxyl group tends to lose a proton to become negatively charged.

2. Exist naturally in more than 21 different varieties: This is false. There are 20 standard amino acids that are encoded by the genetic code in proteins.

3. Exists in nature in beta form: This is false. Most amino acids in proteins are in the alpha form, meaning the amino group is attached to the alpha carbon (the one adjacent to the carboxyl group).

4. When dissolved in water, their R groups will all be charged: This is false. The charge of the R group, or side chain, depends on the specific amino acid and the pH of the solution. Some R groups are nonpolar and will not carry a charge.

5. Has a type defined by their amino group: This is false. The type of an amino acid is defined by its R group. The amino group is the same in all amino acids.