Given what you know about glycolysis and regulation of metabolism by pfk, what is the likely mechanism by which pfk activity differs depending on atp concentration?

Explanation:

PFK is an allosteric enzyme and it is able to regulate glycolysis through allosteric inhibition. The cell can increase or decrease the rate of glycolysis. Example: a high ratio of ATP to ADP will inhibit PFK and glycolysis.

Regulation of metabolism pathways include regulation of an enzyme by increasing or decreasing its response to signal in a pathway. Glycolysis is a process in which one molecule of glucose is broken down into two molecules of pyruvic acid. The glycolysis process is a multi-step metabolic pathway.

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.