Answer & Explanation
B) human body
Enzymes play an essential role in each living cell of our body. Enzymes are globular proteins that control biological reactions. These are of two types.
1. Intracellular enzymes
2. Extracellular enzymes
Intracellular enzymes are found inside the cell.
Extracellular enzymes act outside the cell.
Enzymes are produced by exocrine glands.
Digestive enzymes of diverse specificities are secreted by the salivary glands, stomach, pancreas, and the small intestine.