Which of the following amino acids is quickly converted to tyrosine ?

Related Mcqs:

1. The class of amino acids that contains only non essential amino acids is_______________?

   A. Acidic
   B. Basic
   C. Aromatic
   D. Branched chain

2. Which one of the following amino acids is purely ketogenic ?

   A. Proline
   B. Phenylalanine
   C. Isoleucine
   D. Leucine

3. Decarboxylation of which of the following amino acids results in formation of a vasodilator ?

   A. Valine
   B. Arginine
   C. Histidine
   D. Glutamic acid

4. Proteins are linear polymers of amino acids, They fold into compact structures Sometimes these folded structures associate to form homo or hetero dimers Which one of the following refers to this associated form ?

   A. Denatured state
   B. Molecular aggregation
   C. Precipitation
   D. Quaternary structure

5. In maple syrup urine disease the amino acids excreted in the urine are______________?

   A. Leucine
   B. Isoleucine
   C. Valine
   D. All of the above

6. Amino acids excreted in the urine in cystinosis______________?

   A. Cystine
   B. Ornithine
   C. Arginine
   D. Lysine
   E. All of the above

7. Non essential amino acids are not_____________?

   A. Used by the body
   B. Forming part of the proteins
   C. Required in the diet
   D. Absorbed in the intestines

8. The protein rich in basic amino acids, which functions in the packaging of DNA is chromosomes is______________?

   A. Histone
   B. Collagen
   C. Hyaluronic acid binding protein
   D. Fibrinogen

9. Unsaturated fatty acids are converted to______________?

   A. Prostaglandins
   B. Cholesterol
   C. Cell membrane lipid
   D. Saturated fatty acid

10. Which of the following amino acid is involved in gluconeogenesis______________?

    A. Glycine
    B. Valine
    C. Cysteline
    D. All of the above