Amino Acids

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1. What are the precursors of Tryptophan and tyrosin?

  • Tryptophan= Thyroxin and catecolamines, Tyrosin= serotonin and nicotinamide
  • Tryptophan= serotonin and nicotinamide, Tyrosin= thyroxin and catecolamines
  • Tryptophan= serotonin and catecolamines, Tyrosin= thyroxin and nicotinamide
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Other questions in this quiz

2. Aspartame does not....

  • 2% conc found in skeletal mucles, they act as buffers
  • form a sweet taste, 200x stronger than sucrose
  • Hydrolysis of methyl esters yeilds (toxic methanol)

3. Which of these is not the function of cysteine residue?

  • thiol side chain can form bonds with metal ions therefore prosthetic groups in the protien
  • CO-NH2 can react with sugars, olgiosaccharides and polysaccharides
  • Forms sulphide bonds in the amino acid structures

4. Which of these functions is incorrect about Vasopressin?

  • Used for Lactation
  • slow degradation of vasopressin for diabetic urinal excretion
  • Used to control blood pressure (increases)
  • regulates the excretion of water by kidneys

5. which of theses acts as carnosine and aresine?

  • 2% conc found in skeletal mucles, they act as buffers
  • Produced Hydrolysis of methyl esters yeilds (toxic methanol)

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