👉 Non-pumpable is a concept in the field of biochemistry and pharmacology, which refers to substances that do not require exogenous (external) energy or nutrients for their metabolic processes. Non-pumpable substances are often used as intermediates or substrates in biochemical reactions because they can be synthesized without requiring external factors such as ATP or other energy sources. Non-pumpable substances can include a wide range of molecules, from simple organic compounds to complex proteins and lipids. They are typically