Question: what do you think is the principal difference between a bacterial species that produces a curd?
Answer: Protelolytic enzymes such as chymotrypsin , rennin, and pepsin produced by some bacteria produce a curd. A curd differs from an acid clot since it will notdissolve in alkaline conditions. In those conditions the curd will tend to retract from the sides of the tube revealing a straw-colored fluid calledwhey.