The molecules in the food we eat contain chemical energy stored in chemical bonds. Which statement BEST explains how this energy is released? O
A Cells burn food molecules, releasing energy as heat that powers movement while keeping the body at the correct temperature,
B. Chemical energy is released as eaten food is digested, giving off heat as a by-product.
C. Cells extract and capture the energy in food molecules all at once, then store it for later use.
D. Chemical bonds in food molecules are broken, releasing energy and allowing cells to use the energy to make ATP.

The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.