Catalase, one of the fastest known enzymes, catalyses the breakdown of
- A. starch into maltose
- B. protein into amino acids
- C. fat into fatty acids and glycerol
- D. hydrogen peroxide into water and oxygen
Explanation
A single catalase molecule can decompose millions of molecules of hydrogen peroxide per minute, which is necessary because the peroxide produced during metabolism would otherwise damage the cell within seconds. This is why fresh liver put into hydrogen peroxide froths violently, a standard classroom demonstration. Amylase, protease and lipase are the enzymes for the other three substrates listed.
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