Protein structure and function

The building blocks, or subunits of proteins are called

• polymers.

• amino acids.

• monomers.

• peptide bonds

Check all of the items that are part of an amino acid.

• alpha carbon

• carboxyl group

• R group

• amino group

Tags

NGSS.HS-LS1-6

How many of the 23 amino acids actually make up proteins in organisms?

Which portion of an amino acid provides its unique characteristics to the amino acid?

• alpha carbon

• R group

• carboxyl group

• amino group

Identify the type of bond that links amino acids in a protein.

• hydrogen

• peptide

• glycosidic

• ester

Which type of chemical reaction links amino acids when making a protein?

• dehydration synthesis

• hydrolysis

• either of these

• neither of these

Tags

NGSS.HS-LS1-6

Amino acids have different properties based on their side chains.

• true

• false

Which portion of an amino acid is likely to have properties of an acid (release a hydrogen ion)? Think about what you have learned about images of the pH scale.

• amino group

• alpha carbon

• carboxyl group

• both the amino group and the carboxyl group

Which portion of the amino acid is likely to have properites of a base (accepting hydrogen ions)? Think about what a representation of the pH scale looks like!

• amino group

• alpha carbon

• carboxyl group

• both the amino group and the carboxyl group

The number of nonpolar amino acids is