The breakdown of a disaccharide releases energy which is stored as ATP. This is an example of a(n):

The breakdown of a disaccharide releases energy which is stored as ATP. This is an example of a(n):
A . Thermodynamic reaction
B . Exothermic reaction
C . Combination reaction
D . Replacement reaction
E . Endothermic reaction

View Answer

Answer: B

Explanation:

An exothermic reaction releases energy, whereas an endothermic reaction requires energy. The breakdown of a chemical compound is an example of a decomposition reaction (AB C> A + B). A combination reaction (A + B C> AB) is the reverse of a decomposition reaction, and a replacement (displacement) reaction is one where compound breaks apart and forms a new compound plus a free reactant (AB + C C>AC + B or AB + CD C> AD + CB).