The answer is carbon dioxide. im 100 percent this is right<span />
Answer: Y goes to proteins.
Explanation:
Enzymes, which are a form of protein, are used by the cell to accelerate chemical reactions.
Https://www.press.muni.cz/media/3019066/answers_to_all_questions.pdf
<span>Magnetic resonance imaging
is a technology that uses magnetic fields and radio waves to produce high
quality 2 or 3 dimensional images of the brain structure without using
radioactive tracers and ionizing radiation. The magnetic resonance intensity is
proportional to the density of the protons in various tissues.</span>