Proteins and Enzymes

The diagram below illustrates a biochemical process that occurs in organisms. What is another name for the substance labeled "catalyst"?

• Enzyme
• inorganic compound
• Hormone
• Antibody

What is the monomer of a protein?

• Amino Acid
• Nucleic Acid
• Monosaccharide
• Nucleotide

Tags

NGSS.HS-LS1-6

There are _____ different kinds of amino acids.

• 20
• 23
• 46
• 26

The first step of building a protein creates a(n)

• amino acid chain (aka polypeptide chain)
• alpha helix or beta pleated sheet
• folded subunit
• 2+ folded subunits combining together

Tags

NGSS.HS-LS1-1

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

• True
• False

The order of the amino acids occur in the chain

• disulfide cross-link
• hydrophobic
• primary structure
• secondary structure

Tags

NGSS.HS-LS1-1

Amino Acids:

• are a type of marinade.
• help transport fats in the body.
• are the building blocks from which proteins are made.
• are only found in plants.

Tags

NGSS.HS-LS1-6

What is the purpose  of an enzyme?

• give permission for the reaction
• raise activation energy
• speed up reactions
• control how many reactions occur

Tags

NGSS.MS-LS1-7

Which of the following conclusions can be drawn from this graph?

• The optimum pH of the enzyme is 6.6.
  
• The optimum pH of the enzyme is 5.8
  
• The enzyme’s activity increases as pH increases 5.0 to 9.0
  
• The enzyme’s activity is greater around pH of 8.0 .
  

What happens when enzymes are heated to a high temperature?

• The enzymes die.
• The shapes of the enzyme are altered or denatured
• The enzymes' amino acid sequence changes.
• The enzymes remain the same