Proteins and Enzymes

What is a peptide bond?

• Bond that holds two amino acids together.
• A bond that holds hydrogen and oxygen molecules together.
• A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide.
• A bond that is formed by the sharing of electrons.

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NGSS.HS-LS1-6

How many different amino acids are there?

• 15
• 20
• 25
• 30

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NGSS.HS-LS1-6

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

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NGSS.HS-LS1-6

Amino acids that must be supplied by foods in the diet

• essential amino acid
• complete protein
• emulsion
• collagen

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

• True
• False

The diagram shows a bond forming between two amino acids. What is the name of this reaction?

• Dehydration Synthesis
• Hydrolysis
• Pepysis
• Oxidation

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NGSS.HS-LS1-6

When a protein unfolds, it is

• Denatured
• Building
• Adding amino acids
• Making food

Each amino acid is different from the other due to....

• The R group
• The amino group
• The carboxyl group
• The central carbon

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. 

Tags

NGSS.HS-LS1-6