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To digest cellulose in its environment, a fungus produces a/an

  • A.endoenzyme
  • B.exoenzyme
  • C.catalase
  • D.polymerase

Answer: B

Correct answer: exoenzyme

Cellulose is a huge insoluble polymer that cannot cross the cell membrane, so the fungus secretes an exoenzyme to break it down outside the cell and then absorbs the sugars released. Endoenzymes work within the cell.

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