Protein and its Structure

All amino acids have the same basic structure. Which part of the amino acid makes each each one unique?

• amino group

• carboxyl group

• R-group (side chain)

What is a protein: 

• A polymer composed of many sugars.
• A polymer composed of many amino acids. 
• A polymer composed of fatty acids. 
• A polymer composed of nucleotides. 

This is one job proteins do NOT have in the body

• storing genetic information
• structure
• speed up chemical reactions
• transport things through cell membrane

What is the monomer of proteins?

• amino acids
• polypeptides
• nucleotides
• monosaccharides

What is a long chain of amino acids called?

• Polysaccharide

• Lipid

• Carbohydrate

• Polypeptide

• Nucleic acid

What is the name of the bond that joins two amino acids together?

• Ester bond

• Glycosidic bond

• Peptide bond

• Nucleic bond

All proteins

• have a unique structure that determines their unique function.

• are exactly the same in function but different in structure.

• are exactly the same in structure but different in function.

• are enzymes.

Proteins are made of

• CHO

• CHON

• CHONP`

• CHONS

The structure of proteins can be changed by environmental factors such as temperature or pH.

• True
• False

How many different amino acids are there?

• 15
• 20
• 25
• 30