im thinking its a chemical change cause a new substance is formed
Answer:
Mitochondrian
Explanation:
The enzymatic reactions of cellular respiration begin in the cytoplasm, but most of the reactions occur in the mitochondria. Cellular respiration occurs in the double-membrane organelle called the mitochondrion.
Answer:
amino
carboxy
and carbon chain having hydrogen make amino acids
in turn aminoacids form peptide or protiens