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Metabolism questions for NEET PG
87 Metabolism questions from the Biochemistry section of the Recallab bank, each with a verified answer, every option explained and a reference to a current edition. 2 are published in full below.
- Cellular oxidation is inhibited by:
- Sources of the nitrogen in urea cycle are the following:
- In oxidative phosphorylation, which of the following links the respiratory chain and ATP production?
- Hydroxylation of peptidyl prolyl residues in collagen require:
- A 6-month-old infant has a raised blood phenylalanine detected on newborn screening. Dietary phenylalanine restriction normalises the level, but he continues to lose developmental milestones and…
- A 15-year-old boy has muscle pain and cramps after sustained exercise, and once passed dark brown urine after a long run. Muscle biopsy shows accumulation of lipid droplets within the fibres. Which…
- After an overnight fast the insulin to glucagon ratio falls. Which enzyme is activated as a result?
- A 19-year-old man has had three episodes of renal colic since childhood, and his brother has the same problem. Urine microscopy shows flat, colourless hexagonal crystals. Which group of substances is…
- A 6-year-old boy has had three episodes of acute pancreatitis. He has eruptive xanthomas over the buttocks and hepatosplenomegaly. A fasting blood sample separates into a creamy layer over clear…
- Apolipoprotein B48 and apolipoprotein B100 are produced from the same gene. How does the intestine produce the shorter B48 form?
- The conversion of noradrenaline to adrenaline in the adrenal medulla requires a methyl group. What supplies it?
- A 2-year-old has failure to thrive with bulky, foul, floating stools. The blood film shows acanthocytes, serum cholesterol and triglycerides are very low, and chylomicrons are absent after a fatty…
- A mother reports that her baby's wet nappies turn black if left standing. Thirty years later the same patient has low back pain, and the ear cartilage and sclerae show slate blue-grey discolouration…
- An infant has a phenylalanine of 40 mg/dL but normal phenylalanine hydroxylase activity. Dietary phenylalanine restriction alone does not prevent neurological deterioration. Which cofactor is…