Proteins Flashcards

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1
Q

Compare and contrast the molecular structures of globular and fibrous proteins (4)

A

• both:
- chains of amino acids joined by peptide bonds
- contain hydrogen bonds

• globular has tertiary/quaternary structures but fibrous has little/no tertiary structures

• globular can be folded into compact shapes, fibrous has long chains

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2
Q

Suggest how two amino acids could be brought closer together to form part of the active site of the enzyme (3)

A
  • formation of secondary structure
  • hydrogen bonding between R groups
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3
Q

Describe how a peptide bond is formed (2)

A
  • condensation reaction
  • b/w amine group and carboxyl group of adjacent amino acids
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4
Q

State why enzymes are described as biological catalysts (1)

A
  • reduce activation energy of biological reactions
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