Hello, this is microbiology, and the lab was about pure culture techniques. 6. Water melts at o°C, and solidifies / freezes at that same temperature.(a) At what temperature does it solidify?(b) At what temperature does agar melt?(c) Why do you think this difference might matter?

Microbiology is the branch of biology which deals with the study of micro-organisms like - bacteria, viruses and single celled, small eukaryotes. a) Water soldifies at 0°c temperature.b) Agar is a solidifying agent mostly used in the microbiology laboratories. It melts around 85-95°C temperature, which is also known as the melting temperature of agar. c) The difference in melting temperature of agar and water matters because agar is utilised as a solidifying agent, to make the working medium solid or semi-solid. This medium is necessary for the growth of microorganisms and for their isolation because it provides a suitable and stable environment for their growth. Explanation:- Agar and water have different melting temperature because of their nature, constituent and functionality. Agar melts at higher temperatures and remain solid at room temperature (20-25°c) and because of this property, it is used for making the medium solid in nature.There is a difference in melting temperature between agar and water because of their structural and functional properties. It matters because agar performs a very useful and efficient function in preparing & maintenance of the medium in microbiology labs for the growth and isolation of microorganisms.