How does the potential-energy diagram for a reaction indicate whether the reaction is endothermic or exothermic? an endothermic reaction has reactants that are lower in energy than products because energy is absorbed to form the products. an endothermic reaction has reactants that are higher in energy than products because energy is released to form the products. an exothermic reaction has reactants that are lower in energy than products because energy is released to form the products. an exothermic reaction has reactants that are higher in energy than products because energy is absorbed to form the products.

Starch and are common polysaccharide carbohydrates found in plants. sucrose glycogen fructose cellulose

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

Which metals are called noble metals