Which is correct regarding an endothermic reaction?
a. the reaction does not occur.
b. the reaction liberates heat.
c. the enthalpy of the reactants is higher than the enthalpy of the products.
d. the sign of the h is positive.
e. the temperature increases when the reaction is carried out in a calorimeter?

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.