Question

question 9

some bacteria make a molecule called nitrogenase. nitrogenase speeds up the reaction that converts atmospheric nitrogen into ammonia. what type of molecule is nitrogenase?

disaccharide
enzyme
dna
amino acid

Explanation:

Analyze the function of nitrogenase

The question states that nitrogenase "speeds up the reaction that converts atmospheric nitrogen into ammonia."

Identify the biological term for a reaction catalyst

A molecule that speeds up (catalyzes) a chemical reaction in living organisms is defined as an enzyme.

Evaluate the given options

• Disaccharide: A carbohydrate composed of two monosaccharides, used for energy.
• Enzyme: A biological catalyst that speeds up chemical reactions. This matches the description.
• DNA: A nucleic acid that stores genetic information.
• Amino acid: The monomer building block of proteins, not a functional catalyst on its own.

Answer:

• Disaccharide
• Enzyme (Correct answer)
• DNA
• Amino acid