Which of the following is precursor of adrenaline and thyroxine synthesis ?

Related Mcqs:

1. Rate limiting step in adrenaline synthesis is conversion of____________?

   A. Tyrosine to dopa
   B. Phenylalanine to tyrosine
   C. Dopa to dopamine
   D. Dopamine to nor epinephrine

2. The precursor of cholesterol synthesis is________________?

   A. Acetic acid
   B. Acetyl CoA
   C. Oxalo acetic acid
   D. Pyruvate

3. Triglyceride synthesis synthesis is increased by______________?

   A. Growth hormone
   B. Insulin
   C. Cortisol
   D. Gulcagon

4. Thyroxine causes all the following except______________?

   A. Decreased cell metabolism
   B. Increased oxygen consumption
   C. Increased pulmonary ventilation
   D. Increased basal metabolism

5. Which of the following is a precursor of protoporphyrin_______________?

   A. Alanine
   B. Leucine
   C. Histidine
   D. Glycine

6. Thyroxine and catecholamines are derived from_____________?

   A. Tyrosine
   B. Tryptophan
   C. Alanine
   D. Leucine

7. The precursor of testosterone is_____________?

   A. Aldosterone
   B. Methyl testosterone
   C. Estrogen
   D. Pregnenolone

8. The immediate precursor of norepinephrine is______________?

   A. Epinephrine
   B. Tyrosine
   C. Dopamine
   D. Phenylalanine

9. Which of the following vitamins is necessary for maturation of blood precursor cells________________?

   A. Vit- A
   B. Thiamine
   C. Riboflavin
   D. Cyano cobalamine

10. Adrenaline is used in following EXCEPT______________?

    A. With xylocaine
    B. Post extraction socket
    C. Anaphylactin shock
    D. Angina in dental chair
    E. Both B & D