This quiz works best with JavaScript enabled. Home > Science > Biology > Vitamins Minerals Coenzymes And Deficiency Diseases – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Vitamins Minerals Coenzymes And Deficiency Diseases Quiz 6 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which fat soluble vitamin Forms visual purple for night vision (visual pigment).Maintains epithelial tissue in skin and mucous membranes.Promotes bone formation A) Vitamin A. B) Vitamin B. C) Vitamin D. D) Vitamin K. Show Answer Correct Answer: A) Vitamin A. 2. Adding ..... to a breakfast of cereal will help your body absorb iron. A) Milk. B) Water. C) Coffee. D) Orange juice. Show Answer Correct Answer: D) Orange juice. 3. Which of the following is not a source of vitamin C? A) Milk. B) Potato. C) Guava. D) Tomato. Show Answer Correct Answer: A) Milk. 4. In the co-enzyme B12 the position occupied by a cyanide ion in vitamin B12 is bonded directly to the ..... of the ribose of adenosine. A) 5-6 dimethylbenzimidazole. B) Hydroxycobalamin. C) Cyanocobalamin. D) Adenine. Show Answer Correct Answer: D) Adenine. 5. Which of the following mineral is involved in protein metabolism and oxidation reactions? A) Calcium. B) Manganese. C) Magnesium. D) Molybdenum. Show Answer Correct Answer: D) Molybdenum. 6. Which vitamin gets destroyed on heating A) Vitamin A. B) Vitamin B. C) Vitamin C. D) Vitamin D. Show Answer Correct Answer: C) Vitamin C. 7. $\beta$-carotene together with $\alpha$-carotene, $\gamma$-carotene and cryptoxanthine are synthesized by A) Plants. B) Animal. C) Plants and animals both. D) None of these. Show Answer Correct Answer: A) Plants. 8. Which one of the following vitamins is known as the anti sterile factor? A) Retinol. B) Riboflavin. C) Ascorbic acid. D) None of these. Show Answer Correct Answer: B) Riboflavin. 9. An endemic disease of cardiomyopathy in children is attributed to A) Low intake of iron. B) High intake of iron. C) Low Se in the environment. D) High Se in the environment. Show Answer Correct Answer: C) Low Se in the environment. 10. If vitamins taken in excess can be stored in A) Fat. B) Body fat. C) Fat tissue. D) All of the above. Show Answer Correct Answer: D) All of the above. 11. How do plants manufacture vitamins A) From the soil. B) Photosynthesis. C) Water absorbtion. D) None of these. Show Answer Correct Answer: B) Photosynthesis. 12. Lipoic acid exists in A) Reduced form. B) Oxidized form. C) Oxidized and reduced form both. D) None of these. Show Answer Correct Answer: C) Oxidized and reduced form both. 13. B1 vitamins is A) Biotin. B) Niacin. C) Thiamin. D) Riboflavin. Show Answer Correct Answer: C) Thiamin. 14. Bone has two types of cells what are they A) Osteoblast. B) Osteoclast. C) All of the above. D) None of these. Show Answer Correct Answer: C) All of the above. 15. Fat soluble vitamins are A) Vitamins A, B. B) Vitamins B, C. C) Vitamins A, B, C, D. D) Vitamins A, D, E, K. Show Answer Correct Answer: D) Vitamins A, D, E, K. 16. Provide structure in forming bones and teeth. Help maintain normal heart rhythm, muscle contraction, neural conductivity, and acid base balance Regulate cellular metabolism by becoming part of enzymes A) Choline. B) Minerals. C) Vitamins B1 to B12. D) All vitamins. Show Answer Correct Answer: B) Minerals. 17. Selenium is an essential component of the enzyme glutathione peroxidase which A) Oxidizes toxic hydoperoxycompounds in tissues. B) Reduces toxic hydoperoxycompounds in tissues. C) Scavenges toxic hydoperoxycompounds in tissues. D) None of the above. Show Answer Correct Answer: C) Scavenges toxic hydoperoxycompounds in tissues. 18. Vitamins are essential because the organism A) Can't synthesize these compounds in the adequate amounts. B) Can synthesize these compounds partially. C) Can't synthesize these compounds at all. D) None of the above. Show Answer Correct Answer: C) Can't synthesize these compounds at all. 19. Coenzymes consist of two parts A) Protein molecule. B) Coenzyme. C) Both (a) and (b). D) None of these. Show Answer Correct Answer: C) Both (a) and (b). 20. The occurrence of metals such as iron or molybdenum in some flavoproteins can A) Form chelation. B) Stabilize the semiquinone. C) De-stabilize the semiquinone. D) All of these. Show Answer Correct Answer: B) Stabilize the semiquinone. ← PreviousNext →Related QuizzesScience QuizzesVitamins Minerals Coenzymes And Deficiency Diseases Quiz 1Vitamins Minerals Coenzymes And Deficiency Diseases Quiz 2Vitamins Minerals Coenzymes And Deficiency Diseases Quiz 3Vitamins Minerals Coenzymes And Deficiency Diseases Quiz 4Vitamins Minerals Coenzymes And Deficiency Diseases Quiz 5Vitamins Minerals Coenzymes And Deficiency Diseases Quiz 7Vitamins Minerals Coenzymes And Deficiency Diseases Quiz 8Vitamins Minerals Coenzymes And Deficiency Diseases Quiz 9Biological Sciences QuizBiology QuizBotany QuizCell Biology QuizCirculatory System QuizEndocrine Glands QuizGenetic And Mendel S Law Of Heredity QuizHuman Body And Reproduction QuizHuman Physiology Anatomy QuizNervous System QuizPlant Kingdom QuizRespiration QuizScientific Names Of Plants And Animals QuizSkeletal System QuizVirus And Bacteria QuizZoology Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books