Vitamin A_____________?

Related Mcqs:

1. In humans and other primates as well as in guinea pigs, this vitamin cannot be synthesized because of the absence of the enzyme L-gulonolactone oxidase: the vitamin is_____________?

   A. Pantothenic acid
   B. Nicotinic acid
   C. Ascorbic acid
   D. Folic acid

2. A mutation that converts an amino acid codon to a stop codon is a_____________?

   A. Nonsense mutation
   B. Transversion
   C. Silent mutation
   D. Frame shift mutation

3. When the prosthetic group of an enzyme is an inorganic ion, it is called a_____________?

   A. Cofactor
   B. Coenzyme
   C. Apoenzyme
   D. Holoenzyme

4. Inhibition of glycolysis by O2 is known a_____________?

   A. Muni effect
   B. Pasteur effect
   C. Hill reaction
   D. Gluconeogenesis

5. The term” contact point” which is often used to designate the contact of teeth i the same arch is a_____________?

   A. Synonym
   B. Antonym
   C. Misnomer
   D. Laevonomer

6. Basically TMJ is a_____________?

   A. Ball and socket joint
   B. Hinge and axis joint
   C. Synovial joint
   D. Diartmodal joint

7. Morphine is a_____________?

   A. Sedative
   B. Alkaloid
   C. Diuretic
   D. Anti hypertensive
   E. Both A & B

8. Omeprazole is a_____________?

   A. Antihistamine
   B. Proton pump inhibitor
   C. Ulcer protective
   D. Ulcer healing drug

9. A biological experiment in which one compares the effects of two preparations by means of common biological response is known a_____________?

   A. Biodegradable
   B. Bio-experiment
   C. Bio-assay
   D. Bio-statement

10. The most pronounced effect on the oral microflora of a reduction in rate of salivary flow is a_____________?

    A. Significant increase in number of oral bacteria
    B. Shift towards more acidogenic microflora
    C. Significant decrease in number of oral bacteria
    D. Shift towards more aerobic microflora