In most animals much of the free ammonia is converted to a nontoxic compound before export from the extrahepatic tissues into theThe free ammonia produced in tissues blood and transport to the liver or kidneys.
举一反三
- The<br/>plasma lipoprotein involved in the reverse transport of cholesterol<br/>(extrahepatic tissues to liver) is ( ) A: HDL B: LDL C: VLDL D: CM
- After they are produced from acetyl-CoA in the liver, ketone bodies are mainly used for which one of the following processes A: Excretion as waste products B: Energy generation in the live C: Conversion to fatty acids for storage of energy D: Generation of energy in the tissues E: Generation of energy in red blood cells
- A. Carbon skeleton of amino acids are converted into CO2 and H2O, nitrogen is excreted from the body mostly as ammonia B. The carbon skeleton of gluconeogenic amino acid can be converted into glucose but not fat
- The patient in the previous question had very high blood glucose levels, and his urine also contained high blood glucose levels. The high blood glucose levels can lead to cerebral dysfunction owing to which one of the following A: Dehydration B: Reduced lipid concentrations in the blood C: Increased lipid concentrations in the blood D: Hyperhydration E: High ammonia levels F: Low ammonia levels
- The ( ) side of the heart receives ( ) blood from the body tissues and then pumps this blood to the lungs to pick up oxygen and dispel carbon dioxide. A: left; oxygen-poor B: left; oxygen-rich C: right; oxygen-rich D: right; oxygen-poor