Me plz and ! !
disease: tay sachs
systemic impact (what problems does the defect in organelle function have on body systems? which body systems are affected? how? ):
impact on homeostasis: (explain homeostasis and how this disorder disrupts homeostasis. how does this impact the cell, the patient? )
feedback loop affected: (explain the feedback loop and how a disturbance in this loop impacts a patient.)

Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit.there is a precise compatibility between the active site and the lactose molecule.specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed.reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.