What Mechanical Engineers Do. Mechanical engineers develop and build mechanical devices for use in industrial processes. Mechanical engineering is one of the broadest engineering disciplines. Mechanical engineers research, design, develop, build, and test mechanical and thermal sensors and devices, including tools, engines, and machines.
Each tissue is with metabolic enzymes to release energy. Red blood cells do not have mitochondria . They get energy through glycolysis. Tissues like muscles have mitochondria . When muscles need energy mitochondria through mitochondria release more energy. Liver is the primary organ of metabolism. In liver carbohydrates, lipids and amino acids are metabolized. All tissues other than liver can metabolism carbohydrates fat and amino acids.
Liver Enzymes The liver produces several enzymes involved in metabolism. Among them, the aminotransferases, also called the transaminases, ALT and AST, which function in protein metabolism, have particular diagnostic value, as they become elevated in several diseases, including those of the liver and gallbladder in addition to disorders of other tissues, including the heart and muscle.