Agar is used for solidyfing Liquid Media instead of Gelatin Because ?: (A) Agar has more nutrition, (B) Gelatin melts at 37degC, (C) Gelatin is not easily available, (D) Agar is cheaper
Answer is B. Ans. is 'b' i.e., Gelatin melts at 37degC Agar is preferred to gelatin as a solidifying agent in culture media. This is because gelatin melts at relatively low temperature (< 35degC), while agar melts at around 85degC. Therefore, when gelatin is incubated at the normal temperature for bacterial growth, i e. at 37deg C, it melts, while agar remains solid.