BIOMOLECULES AND ENZYMES

Detailed explanation-1: -In case of an exothermic reaction, reactants are at lower energy than products.

Detailed explanation-2: -Answer and Explanation: In the potential energy diagram, if the products have less energy than the reactants, then there is a release of energy. This kind of reaction is classified as exothermic and accompanied by negative enthalpy change.

Detailed explanation-3: -In an endothermic reaction, energy is absorbed during the reaction, and the products thus have a larger quantity of energy than the reactants. This means that the products are less stable than the reactants.

Detailed explanation-4: -Because energy is a product, energy is given off by the reaction. Therefore, this reaction is exothermic. Because energy is a reactant, energy is absorbed by the reaction.

Detailed explanation-5: -In an exothermic reaction, the bonds in the product have higher bond energy (stronger bonds) than the reactants. In other words, the energy of the products is lower than the energy of the reactants, hence is energetically downhill, shown in Figure 7.5.