AP Biology Protein Structure and Function

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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How many different amino acids are there?

• 15
• 20
• 25
• 30

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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. 

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NGSS.HS-LS1-6

The diagram shows the structure of an amino acid. Which type of molecule is formed from amino acids?

• lipids
  
• proteins
  
• carbohydrates
  
• nucleic acids
  

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NGSS.HS-LS1-6

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

The polymer which folds into proteins

• Polypeptide
• Amino Acids
• Nucleic Acids
• Polynucleotides

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NGSS.HS-LS1-6

NGSS.HS-LS1-1

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

• Hydrolysis
• Dehydration Synthesis
• Oxidation
• Single Displacement

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