I believe the answer is D. A reactant that is catalyze a by an enzyme.
starch into glucose
proteins into amino acids
lipids into fatty acids
There are many more examples of chemical digestion which takes place in the body. Chemical digestion is the breaking of larger more complex molecules into smaller, simpler ones that can be taken up by the cells more easily and readily by the use of chemical agents.. Chemical digestion is carried out primarily using biological molecules called enzymes. For example, the breakdown of starch is done by an enzyme known as amylase, which is present in the saliva.
Dermis and Epidermis. The Epidermis contains keratinized cells. The Dermis <span>contains papillae.</span>
