Two unlabeled slides are viewed under a microscope. Slide a has cells with a visible nucleus, mitochondria, a cell membrane, a cell wall, and chloroplasts. Slide b has cells with a visible nucleus, mitochondria, and a cell membrane. How should these slides be labeled?.

A(n) is a molecule influences the way that a molecule reacts.

Explain the process that creates the heat of the sun?

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.