Which of the following statements is false? (A) At most temperatures, both plants consumed
carbon dioxide.
(B) Both plants responded to changes in light
intensity in the same way.
(C) Both plants responded to changes in tempera-
ture in the same way.
(D) Carbon dioxide has been used to produce
sugars and many other molecules needed by
the plants.

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.