What gets heavier in an electrochemical cell? O A. The cathode
B. Negative ions
O C. The salt bridge
O D. The anode

just did the assignment and the answer was #1 +2 n

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.