What do you observe as you push up the balloon

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?

Discuss cell surface transport in the structure of constituents

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.