Multiple choice

In sheep, break down of enzyme resistant cellulose is done by_______.

  1. aerobic bacteria

  2. protozoa

  3. anaerobic bacteria

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In sheep and other ruminants, protozoa living in the rumen are primarily responsible for breaking down cellulose through fermentation. While anaerobic bacteria also contribute, protozoa are the main agents for digesting enzyme-resistant cellulose. Aerobic bacteria cannot survive in the anaerobic environment of the rumen.

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