Question #3ffea

1 Answer
Oct 7, 2015

Enzymes can be regulated at many levels, from how much is made, to how active the enzyme is

Explanation:

Enzymes are essentially proteins that do a job... you can think of them as workers on a construction site.

If you want more work to be done, you can either hire more construction workers, or tell the existing workers to quit taking a coffee break and get to work!

In terms of enzymes, if the cell needs to regulate the activity of an enzyme, it can do so at a few levels. First, the cell can regulate the enzyme at the gene expression level. That is, it can turn on (or off) the production of that protein from its gene and change the amount of enzyme it makes. Like hiring more workers.

The cell can also have a lot of enzyme already produced, but in a non-active state. This non-active enzyme floats around in the cell until a signal arrives that activates it, at which point it "gets off its coffee break" and starts doing its job. This kind of molecular regulation is faster than regulation at the gene expression level, because the enzyme is already made and ready to go, it just needs to be activated.