Could some one explain respiration in the carbon cycle

Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.

Or!! ⬇️

When plants and animals die, their bodies, wood and leaves decays bringing the carbon into the ground. ... Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.

Called for cell.

Mg is used to measure mass