Biology · General Awareness
Vitamins and Nutrition
1,549 Questions
Review essential concepts of human nutrition, focusing on macro and micronutrients. The questions cover vitamin deficiencies, sources, and their physiological roles such as blood clotting and vision. This material is highly relevant for the general science section of various government exams.
Vitamin sources and functionsMacronutrients for energyBlood coagulation vitaminsDeficiency diseasesNutrient absorption mechanisms
Vitamins and Nutrition Questions
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Retinol - Synthesis of rhodopsin
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Riboflavin - Synthesis of neurotransmitter
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Cobalamin - Production of blood cells
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Niacin - Energy transfer reactions
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Biotin - Metabolism of carbohydrates, proteins and fats
B
Correct answer
Explanation
Riboflavin or vitamin B2 plays an important role in the production of energy in electron transport chain, the citric acid cycle and also in β-oxidation of fatty acid and it has no role in synthesis of neurotransmitter.
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Vitamin A
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Vitamin D
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Vitamin E
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Vitamin K
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None of these
B
Correct answer
Explanation
It is required for strong bones and teeth.
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Only vitamin
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Only mineral
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Both vitamin and mineral
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None of these
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Carbohydrate
C
Correct answer
Explanation
Both are known as protective foods.
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vitamin B
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vitamin D
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vitamin K
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vitamin A
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vitamin C
B
Correct answer
Explanation
Vitamin D can be obtained from the sunlight.
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Vitamin
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Fat
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Protein
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Carbohydrate
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None of these
D
Correct answer
Explanation
Starch is a form of carbohydrates.
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Thrombin
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Vitamin K
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Plasmin
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Fibrin
C
Correct answer
Explanation
Plasmin, the plasma protein, contains a euglobulin called plasminogen, which when activated, becomes a substance called plasmin (or fibrinolysin). Plasmin is a proteolytic enzyme that resembles trypsin.
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synthesis of clotting factors
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post-translation modifications
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antioxidant mechanisms
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microsomal hydroxylation
B
Correct answer
Explanation
- Vitamin C is required for post-translation modification of procollagen polypeptide molecules in collagen synthesis.
- Vitamin K is required for post-translation of glutamate residues for generation of clotting factors.
- Synthesis of clotting factors is helped by vitamin K and not by vitamin C.
- Antioxidant properties are features of vitamin A, vitamin E and vitamin C, but not of vitamin K.
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Thiamin
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Riboflavin
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Niacin
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Pantothenic acid
B
Correct answer
Explanation
It is also known as vitamin G in America.
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proteins
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vitamins
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fats and carbohydrates
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proteins and minerals
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minerals and vitamins
D
Correct answer
Explanation
It is correct. Both proteins and minerals help in the growth and maintenance of our body.
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Phosphorus
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Iodine
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Vitamin E
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Iron
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Vitamin A
C
Correct answer
Explanation
It is correct. Vitamin E is needed for proper functioning and maintenance of muscles. It is present in vegetables oils like coconut oil, mustard oil and groundnut oil.
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Vitamin A
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Vitamin B
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Vitamin C
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Vitamin D
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Vitamin E
C
Correct answer
Explanation
It is correct. Vitamin C is needed for healthy gums, healing of wounds and proper functioning of blood vessels.
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vitamin A
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vitamin B
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vitamin C
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vitamin D
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vitamin E
D
Correct answer
Explanation
It is the correct answer. We not only get vitamin D from eggs, butter, milk, cod liver oil and fish, but our body can also prepare vitamin D in the presence of sunlight.
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Iron
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Calcium
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Vitamin C
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Fats
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Vitamin B
E
Correct answer
Explanation
It is correct. Vitamin B is required for proper growth of body, healthy skin and normal functioning of nerves. It is present in green leafy vegetables, beans, peas milk, meat, eggs etc.
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Vitamin A
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Vitamin C
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Vitamin D
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Vitamin E
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Vitamin K
A
Correct answer
Explanation
It is the correct answer. Vitamin A is required for good eyesight and healthy skin. It is present in green leafy vegetables, yellow fruits, milk, carrot, etc.
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Vitamin A
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Vitamin B
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Vitamin C
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Vitamin D
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Vitamin K
E
Correct answer
Explanation
It is correct. Vitamin K is required for normal clotting of blood. It is present in green leafy vegetables.