In an energy diagram, the reactants are at a higher potential energy compared to the products. which of the following best describes this reaction?
a)
it is endothermic and will have a positive enthalpy.
b)
it is endothermic and will have a negative enthalpy
c)
it is exothermic and will have a positive enthalpy.
d)
it is exothermic and will have a negative enthalpy.

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

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 of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon