anaerobic respiration

EXPLAIN IN YOUR OWN WORDS HOW ANAEROBIC RESPIRATION IS DETERMINED USING THE
NITRATE TEST. EXPLAIN THE REACTION BETWEEN NITRATE AND NITRITE.  WHAT DOES A
CLEAR TUBE REPRESENT AFTER THE ADDITION OF NITRITE INDICATORS 1 AND 2? DISCUSS
THE TWO RESULTS THAT INDICATE POSITIVE NITRATE REDUCTION. WHAT IS THE PURPOSE
OF ZINC IN THIS TEST? WHAT ENZYME IS NEEDED TO BREAKDOWN NITRATE?  WHAT FAMILY IS
GEREALY NITRATE REDUCTION POSITIVE?
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