Question

multiple choice question
which of the following are defined as organic compounds that must be provided in the medium to facilitate multiplication of microbes (essential nutrients)?

minerals
enzymes
growth factors

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Explanation:

• Minerals are inorganic nutrients, so they are not the answer.
• Enzymes are biological catalysts, not nutrients provided to facilitate microbial multiplication.
• Growth factors are organic compounds (like vitamins, amino acids) that some microbes can't synthesize and need to be provided in the medium for their growth and multiplication.

Answer:

Growth factors