Baby food manufacturers sometimes use proteases in their products. proteases function by catalyzing the
breakdown of protein, making digestion easier for babies. what type of molecule are proteases?
o enzymes
o hormones
reactants
substrates

Are salt and soap nutrients or toxins for yeast? explain.

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?

The law of thermodynamics states that energy can't be created or destroyed. to natural sources of energy on earth are the