Amino acids and Proteins

The bond that joins amino acids are called:

• Peptide Bonds
• Ester Bonds
• Glycosidic Linkages
• Phosphodiester Bonds

Tags

NGSS.HS-LS1-6

Amino acids all have the same general structure except for the:

• Amino Group
• Carboxyl Group
• 'R' Group
• Carbonyl Group

The reaction used to digest and break the bond in red is:

• Hydrolysis
• Dehydration Synthesis
• Oxidation
• Single Displacement

The number of amino acids used to produce proteins for all living things is:

• 20
• ∞
• 15
• 42

Tags

NGSS.HS-LS1-6

This property of amino acids refers to their ability to act as an acid or a base.

• zwitterionic

• chirality

• UV absorptive

• amphoteric

Are these statements about amino acids true or false?

In the solid state amino acids exists as zwitterions

• true

• false

Are these statements about amino acids true or false?

Peptide links can undergo hydrolysis by reflux with hydrochloric acid

• true

• false

Tags

NGSS.HS-LS1-6

What's the correct definition of these keywords?

zwitterions

• Amino acid molecules with a negative charge on the amine group in the form of COO- and a positive charge on the carboxylic acid group in the form of NH3+

• Amino acid molecules with a positive charge on the amine group in the form of NH3+ and a negative charge on the carboxylic acid group in the form of COO-
  

• Amino acid molecules with a negative charge on the amine group in the form of NH3- and a positive charge on the carboxylic acid group in the form of COO+

Which of these structures is a zwitterion?

• 
• 
• 

Tags

NGSS.HS-LS1-6

The structure below is the amino acid valine. What is its structure when in a solution of high pH?

• 
• 
• 

Tags

NGSS.HS-LS1-6