An increase in the concentration of atp in a muscle cell is a direct result of which life function?

muscle cells are animal tissue and therefore cannot undergo photosynthesis. ATP is created by mitochondria, these mitochondria use an electron transport chain to slowly oxidize glucose. The electron transport chain increases the proton concentration on one side of the membrane. ATP synthase uses this proton gradient to form ATP from ADP. This process is called cellular respiration

When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.