Which situation will most likely cause a cell to have an increase in the amounts of ADP and P_(i) in its cytoplasm? a decrease in protein synthesis'at the ribosomes an increase in the rate of cellular respiration in the mitochondria a decrease in the rate of cell division in a section of skin cells an increase in muscle usage during an athlete's performance

The situation that will most likely cause a cell to have an increase in the amounts of ADP and $P_{i}$ in its cytoplasm is an increase in muscle usage during an athlete's performance. This is because muscle contractions require energy, and ATP is the primary energy currency of the cell. When muscles are actively used, ATP is broken down to release energy, resulting in the conversion of ATP to ADP and the release of inorganic phosphate ($P_{i}$). As a result, the levels of ADP and $P_{i}$ in the cytoplasm increase.