Histidine is converted to histamine by_____________?

Related Mcqs:

1. Histamine is present on surface of_______________?

   A. Lymphocytes
   B. Mast cells
   C. Neutrophils
   D. Erythrocytes

2. Histamine stimulate the secretion of_______________?

   A. Gastrin by stomach
   B. Pancreatic enzymes
   C. HCL by stomach
   D. Amylase by salivary gland

3. The immediate type of hypersensitivity in which histamine doses not play a major role is______________?

   A. Urticaria
   B. Asthma
   C. Anaphylaxis
   D. Arthus reaction

4. Which of the following is not true for histamine ?

   A. Causes arteriolar dialation
   B. causes bronchodialtion
   C. Causes pain when injected subcutaneously
   D. Is released following injury and in certain allergic responses

5. Which of the following histamine blockers has no effect on muscarinic receptors______________?

   A. Diphenydramine
   B. Promethazine
   C. Terfenadine
   D. Pyrilamine

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

   A. Arginine
   B. Glycine
   C. Phenylalanine
   D. Leucine

7. ALbumin is synthesized by_____________?

   A. Liver
   B. Kidney
   C. Muscle
   D. Spleen

8. Heme is converted to bilirubin mainly in_____________?

   A. Kidney
   B. Liver
   C. Spleen
   D. Bone marrow

9. Unsaturated fatty acids are converted to______________?

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

10. Nor epinephrine is converted to epinephrine by______________?

    A. Dopamine hydroxylase
    B. Dopa decarboxylase
    C. O-methylation
    D. N-methylation