Chemically, almost all enzymes are
- A. globular proteins
- B. lipids
- C. polysaccharides
- D. nucleotides
Explanation
An enzyme is a globular protein whose precisely folded tertiary structure creates the active site, which is why anything that unfolds the protein destroys the catalytic power. The globular rather than fibrous form matters because it makes the molecule soluble and compact. The one exception is the small group of catalytic RNA molecules called ribozymes.
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