Which statement best decribes the first stage of cellular respiration? select 3 options 1.The stage happens in cytoplasm
2.The stage happens in mitochondria
3.oxygen combines with small molecules
3.glucose is broken down
5.enegy is released

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.