The vitamin riboflavin, which occurs as a yellow pigment in egg yolk and milk become

  1. Home

- Online Exam Test Papers | - MCQs[multiple choice questions and answers ] | - Mock Test Papers | - Practice Papers | - Sample Test Papers |

Question:
The vitamin riboflavin, which occurs as a yellow pigment in egg yolk and milk become

1.colorless on reduction with Zn in acid and regained its color on re-oxidation

2.colorless on oxidation and regained its color on reduction with Zn in acid

3.more deep in color on reduction with Zn in acid and regained its color on re-oxidation

4.more deep in color on oxidation and regained its color on reduction with Zn in acid

Posted Date:-2021-02-25 11:38:37

More MCQS Questions and answers

  1. In aerobic respiration, the compound that enters a mitochondrion is
  2. What metal ion is specifically bound by vitamin B12?
  3. Biotin occurs mainly in combined forms bound to protein through
  4. In electron transport, electrons ultimately pass to
  5. β-carotene together with α-carotene, γ-carotene and cryptoxanthine are synthesized by
  6. Lipoic acid exists in
  7. Selenium is an essential component of the enzyme glutathione peroxidase which
  8. What compound of raw egg white causes a syndrome similar to vitamin B deficiency?
  9. A deficiency of niacin causes
  10. A deficiency of thiamin produces the disease known as
  11. A deficiency of Vitamin K results in a decreased level of
  12. A fat-soluble vitamin that regulates blood clotting is
  13. Acyl carrier protein (ACP) plays an important role in the biosynthesis
  14. An early sign of retinol deficiencies in man is
  15. An enzyme, L-folate reductase reduces folic acid to
  16. An example of a digestive hormone is
  17. Ascorbic acid acts as an
  18. Biotin occurs mainly in combined forms bound to protein through
  19. Dihydroorotate dehydrogenase contains
  20. During electron transport, protons are pumped out of the mitochondrion at each of the major sites except for
  21. E.coli ACP has its molecular weight as around
  22. How many CO2 molecules are exhaled for each O2 molecule utilized in cellular respiration?
  23. How many molecules of ATP are hydrolysed to form two molecule of ammonia?
  24. In one iron-metalloflavoprotein, the iron is present as a
  25. In the co-enzyme B12the position occupied by a cyanide ion in vitamin B12 is bonded directly to the __________ of the ribose of adenosine.
  26. β-carotene together with α-carotene, γ-carotene and cryptoxanthine are synthesized by
  27. Which of the following is not a significant biological oxidizing agent?
  28. Lactic acid is produced by human muscles during strenuous exercise because of lack of
  29. Lipoic acid is a co-factor of the
  30. Lipoic acid is a co-factor of the
  31. Main function of insulin hormone is to
  32. Models of end-linked Osaka VI Fibrinogen dimers, a bilayer dimer is linked at
  33. Molar absorbtivities of compounds exhibiting charge transfer absorption are
  34. Nitrate reduction can be carried out by
  35. The absence of ascorbic acid in the human diet gives rise to
  36. The aerobic breakdown of glucose known as respiration involves
  37. The complete oxidation of glucose yields usable energy in the form of
  38. The disease Beriberi is due to a dietary deficiency in
  39. The inputs to one cycle of the urea cycle are
  40. The most prominent role that tocopherol has in in-vitro systems is as a strong
  41. The most prominent role that tocopherol has in in-vitro systems is as a strong
  42. The nitrogen atoms of urea produced in the urea cycle are derived from
  43. The occurrence of metals such as iron or molybdenum in some flavoproteins can
  44. The products of urea cycle are
  45. The prosthetic group biotin is a carrier of which type of molecule?
  46. The reductant, NADH, transfers the electrons via a flavo-proteins to the specific disulfide (S-S) protein to form a dithiol (SH,SH) protein which converts vitamin
  47. The symptoms of retinol excess are
  48. The vitamin niacin is part of the __________ molecule.
  49. The vitamin riboflavin is part of the __________ molecule.
  50. The vitamin riboflavin is part of the __________ molecule.
  51. The vitamin riboflavin, which occurs as a yellow pigment in egg yolk and milk become
  52. Urea cycle converts
  53. Vitamin B12 (Cobalamin) is only synthesized by
  54. Vitamin B12 is useful in the prevention and treatment of
  55. Vitamin K1 was first isolated from alfalalfa and has the phytyl side chain consisting of
  56. Vitamin-C is considered as a
  57. Vitamin-D deficiency can cause
  58. Vitamin-D deficiency can cause
  59. Vitamins are essential because the organism
  60. What happens after glycolysis when oxygen is available as an electron acceptor?
  61. Which of the following amino acid do not fall under the category of essential amino acid?
  62. Which of the following are reduced coenzymes?
  63. Which of the following compounds/(s) belong/(s) to the vitamin B6 group?
  64. Which of the following is correct sequence of processes in the oxidation of glucose?
  65. Which of the following is used as carbon atom source while producing urea in the urea cycle?
  66. Which of these hormones is a catecholamine?
  67. Which of these is a symptom of vitamin A deficiency?
  68. Which of these is a vitamin A precursor?
  69. Which of these molecules is vitamin H?
  70. Who discovered vitamin C (ascorbic acid)?
Search
R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!