Home⇒ Medical Science⇒ Biochemistry⇒ Vitamins and coenzymes
| 1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
| 2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
| Q1 ⇒ Which of the following are reduced coenzymes? NADH and FADH2 [other wrong options] [Discuss in forum] |
| Q2 ⇒ An early sign of retinol deficiencies in man is night blindness [other wrong options] [Discuss in forum] |
| Q3 ⇒ The vitamin niacin is part of the __________ molecule. NAD+ [other wrong options] [Discuss in forum] |
| Q4 ⇒ Vitamin-D deficiency can cause rickets [other wrong options] [Discuss in forum] |
| Q5 ⇒ Which of these molecules is vitamin H? Biotin [other wrong options] [Discuss in forum] |
| Q6 ⇒ Acyl carrier protein (ACP) plays an important role in the biosynthesis of fatty acids [other wrong options] [Discuss in forum] |
| Q7 ⇒ In the co-enzyme B12the position occupied by a cyanide ion in vitamin B12 is bonded directly to the __________ of the ribose of adenosine. adenine [other wrong options] [Discuss in forum] |
| Q8 ⇒ Which of these is a symptom of vitamin A deficiency? Blindness [other wrong options] [Discuss in forum] |
| Q9 ⇒ Lipoic acid is a co-factor of the both (a) and (b) [other wrong options] [Discuss in forum] |
| Q10 ⇒ In one iron-metalloflavoprotein, the iron is present as a heme-protein [other wrong options] [Discuss in forum] |
| Q11 ⇒ Main function of insulin hormone is to decrease blood sugar [other wrong options] [Discuss in forum] |
| Q12 ⇒ Lipoic acid exists in oxidized and reduced form both [other wrong options] [Discuss in forum] |
| Q13 ⇒ Vitamin B12 (Cobalamin) is only synthesized by micro-organisms [other wrong options] [Discuss in forum] |
| Q14 ⇒ The vitamin riboflavin is part of the __________ molecule. FAD [other wrong options] [Discuss in forum] |
| Q15 ⇒ 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 B12(Co2+)to B12(Co+) [other wrong options] [Discuss in forum] |
| Q16 ⇒ What metal ion is specifically bound by vitamin B12? Cobalt [other wrong options] [Discuss in forum] |
| Q17 ⇒ Vitamin-C is considered as a water soluble [other wrong options] [Discuss in forum] |
| Q18 ⇒ Selenium is an essential component of the enzyme glutathione peroxidase which scavenges toxic hydoperoxycompounds in tissues [other wrong options] [Discuss in forum] |
| Q19 ⇒ β-carotene together with α-carotene, γ-carotene and cryptoxanthine are synthesized by plants [other wrong options] [Discuss in forum] |
| Q20 ⇒ Vitamin K1 was first isolated from alfalalfa and has the phytyl side chain consisting of four isoprene units [other wrong options] [Discuss in forum] |
| Or |