What is a microbe? , A very small plant, A very small living organism, A chemical, A virus only, What is nutrient agar used for? , Killing microbes, Feeding humans, Growing microbes , Measuring Temperature, Which variable did we change in this practical? , Type of agar, Time left to grow, Temperature, Size of the plate, Which Temperature usually allows microbes to grow fastest?, Very cold, room temperature, warm, very hot, Why does cold temperature slow microbial growth?, Microbes freeze and die immediately , enzymes work slower, agar dries out, microbes stop being living, What happens to enzymes if the temperature gets too high?, They work faster forever, They disappear, The denature and stop working , They turn into microbes, Why are agar plates kept sealed after incubation? , To keep them warm, To make microbes grow faster, To stop microbes escaping and causing harm, To make results clearer, Enzymes are best described as:, Microbes, Nutrients, Biological catalysts , colonies , Why does food last longer in the fridge?, microbes die instantly, cold temperatures slow enzyme activity , fridges remove microbes, food has no microbes, Which improvement would make the experiment more reliable? , Using one plate only, opening the plates, repeating the experiment , Changing more than one variable.

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