Human Physiology

Glucose in the form of glycogen stored in muscles is the primary energy source for skeletal muscles during short-term and intense activity

Chymosin also known as rennet is an enzyme that curdles milk by breaking down caseinogen into paracasein and calcium paracaseinate which leads to the formation of curds

The second heart sound S2 is caused by the closure of the semilunar valves aortic and pulmonary at the end of systole It is sharp short and high-pitched

Myosin is a motor protein that plays a key role in muscle contraction by hydrolyzing ATP to produce movement Its primary function is ATPase activity

Oxidative phosphorylation occurs in the mitochondria where ATP is produced through the electron transport chain and ATP synthase