Question

ONE OF THE CHARACTERISTICS OF MICROBES IS THAT THEY FORM A HARD OUTER COVERING CALLED CYST DURING HARSH AND EXTREME CONDITIONS
THEN WHY DOESN'T YEAST FORM A HARD OUTER COVERING WHEN IT IS KEPT IN A FRIDGE ?( CONSIDERING THE FACT THAT IT IS VERY COLD IN THE FRIDGE ) :-)

Answer 1

This is because yeast can grow at a vast temperature upto a range between 28-68 ^oF (-2 to 20 ^oC). Whereas, the ideal refrigerator temperature is 35 ^oF (1.6 ^oC).