Metabolic waste from metabolism of nucleic acid is:
Correct answer: A. Uric acid
- A. Uric acid
- B. Creatine
- C. Urea
- D. Creatinine
Explanation
Option [a] Uric acid is the chemical created when the body breaks down substances called purines, nucleic acid contains purines, adenine, GuanineOption[b] Creatine is found naturally in muscle cells, it helps muscles produce energy during heavy lifting or high-intensity exerciseOption[c] Urea is produced due to the oxidation of excess amino acids in the liverOption[d] creatinine is the waste product made by muscles from the normal wear and tear on muscles of the body.
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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About Excretion
Excretion removes metabolic wastes such as carbon dioxide, urea and excess salts, and differs from egestion, which removes undigested food. Questions cover kidney structure, nephron ultrafiltration, selective reabsorption and urine formation, along with the excretory roles of the lungs, skin and liver in maintaining homeostasis.
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