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Biochemistry

Questions covering enzymology, metabolism (carbohydrate, protein, nucleotide), vitamins and coenzymes, biochemical pathways, and analytical techniques in biochemistry.

9 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Carbonic anhydrase is the vital respiratory enzyme present in red blood cells catalysing the interconversion of carbon dioxide (CO2) and carbonic acid (H2CO3), thus influencing CO2 transport in the blood.
Which of the following elements is found to play an important mediator of the enzyme carbonic anhydrase?

  1. Copper
  2. Molybdenum
  3. Iron
  4. Zinc
  5. Manganese
Question 2 Multiple Choice (Single Answer)

Many drugs have been developed to treat AIDS (acquired immunodeficiency syndrome), caused by HIV (human immunodeficiency virus). The drugs are basically nucleoside reverse transcriptase inhibitors.
Which of the following compounds is a famous anti-HIV drug?

  1. Abrin
  2. Amethopterin
  3. 6-mercaptopurine
  4. AZT
  5. Thymidine
Question 3 Multiple Choice (Single Answer)

Leuprolide is a well known hormonal analog and agonist.
Which of the following hormonal actions is mimicked by Leuprolide?

  1. Glucocorticoid
  2. Gonadotropin-releasing hormone
  3. Epinephrine
  4. Aldosterone
  5. ACTH
Question 4 Multiple Choice (Single Answer)

Spectrophotometer is an instrument that is made of a monochromator, composed of prisms and is used for the isolation of narrow band widths. Spectrophotometers help in measurement of the selective absorption of light and utilised in both qualitative and quantitative analysis of various molecules and chemicals.
Which of the following compounds is a dye used for the spectrophotometric determination of proteins?

  1. Acriflavin
  2. Naphthol blue black
  3. Pyronin Y
  4. Methylene blue
  5. Agent orange
Question 5 Multiple Choice (Single Answer)

Arthritis is a painful disorder of bone joints. It may be of acute and chronic pathological types.
Which of the following analog of hypoxanthine is used in the treatment of acute inflammatory arthritis?

  1. 6-mercaptopurine
  2. Aminopterin
  3. Amethopterin
  4. Allopurinol
  5. Alpha amanitin
Question 6 Multiple Choice (Single Answer)

Various inhibitors are used in the study of the electron transport system at various levels of electron carriers.
Which of the following substances acts as an inhibitor of the electron transport system between cytochromes b and c1?

  1. Antimycin A
  2. Azurin
  3. Bottromycin
  4. Amytal
  5. Atractyloside
Question 7 Multiple Choice (Single Answer)

Monosaccharides and disaccharides are different forms of carbohydrates.
Which of the following colorimetric tests helps us to distinguish monosaccharides from disaccharides?

  1. Acrolein test
  2. Anthrone test
  3. Barfoed's test
  4. Biuret reaction
  5. Carr-Price test
Question 8 Multiple Choice (Single Answer)

There are various chemical tests performed as a part of urine analysis.
Which of the following tests helps us to determine the presence of protein in urine?

  1. Berthelot reaction
  2. Albustix test
  3. Allen's test
  4. Bang method
  5. Bradshaw test
Question 9 Multiple Choice (Single Answer)

The ‘anti-dermatitis factor’ is called so because of the fact that the problem of skin inflammation increased greatly when the concerned diet lacked this factor.
Which of the following vitamins is popularly known as anti-dermatitis factor?

  1. Vitamin C
  2. Vitamin B1
  3. Vitamin B3
  4. Vitamin B6
  5. Vitamin B12
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