In which animal food and its products can you commonly find the disaccharide lactose?

Solution:

The right answer is Carbohydrate

It is compound, including sugars, starches, and dietary fibers, that usual have the general chemical formula (CH2O)n, (where n represents the number of CH20 units in the molecule.) they are a major source of energy for body functions

Plants is the major food sources for carbohydrates

The simple complex main carbohydrate is monosaccharides and disaccharides;  

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

the answer is c. altitude. hope this ! #brainiac