Question

Choose the answer that best describes regulatory enzymes.

	a.	Regulatory enzymes are typically composed of multiple subunits.
	b.	Regulatory enzymes often catalyze the first committed reaction of a pathway.
	c.	Regulatory enzymes often display sigmoidal kinetics.
	d.	Regulatory enzymes can be activated and inhibited by allosteric and/or covalent means.
	e.	As opposed to non-regulatory enzymes, will operate at various speeds depending on their regulatory status.
	f.	All of the above are true.