Biology · General Awareness
Vitamins and Nutrition
1,711 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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Filamentous
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Spirogyra
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Chlorella
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Hydrodictyon
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Chara
C
Correct answer
Explanation
Chlorella is a single-celled freshwater alga. Chlorella contains vitamin C and carotenoids, both of which are antioxidants . It also contains high concentrations of iron and B-complex vitamins
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Vitamin A
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Vitamin B
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Vitamin C
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Vitamin D
D
Correct answer
Explanation
Vitamin D is called “kidney hormone”.
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ascorbic acid
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biotin
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tocopherol
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none of these
D
Correct answer
Explanation
The chemical name of the vitamin B12 is cobalamin.
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potassium nitrate
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potassium perchlorate
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potassium erythorbate
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potassium dichromate
C
Correct answer
Explanation
Potassium erythorbate (C6H7KO6) is a food additive. Chemically, it is the potassium salt of erythorbic acid. As an antioxidant structurally related to vitamin C, it helps to improve flavour stability and prevents the formation of carcinogenic nitrosamines.
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vitamin E
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vitamin B1
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vitamin B12
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vitamin B5
C
Correct answer
Explanation
Cyanocobalamin is the chemical name for Vitamin B12, an essential nutrient for nerve function and DNA synthesis. Vitamin E is tocopherol, Vitamin B1 is thiamine, and Vitamin B5 is pantothenic acid - but Cyanocobalamin specifically refers to B12, which contains the mineral cobalt.
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Vitamin A
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Vitamin B
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Vitamin C
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Vitamin D
D
Correct answer
Explanation
Vitamin D is essential for proper bone and teeth formation because it helps the body absorb calcium and phosphorus from food. Without adequate Vitamin D, bones can become soft and weak (rickets in children, osteomalacia in adults).
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Vit. A
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Vit. B
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Vit. C
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Vit. E
C
Correct answer
Explanation
Amla is a very rich source of Vitamin C.
B
Correct answer
Explanation
Vitamin C is water-soluble and readily leaches out of vegetables when they are washed or cooked in water. Peeling vegetables exposes more surface area, and washing them afterward removes significant amounts of this water-soluble vitamin. Fat-soluble vitamins (A, D, E, K) are not removed by washing.
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biotin
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niacin
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folic acid
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ascorbic acid
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None of these
B
Correct answer
Explanation
Niacin is synthesised from tryptophan.
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L-hexuronic acid
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thiamine
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pantothenic acid
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folic acid
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None of these
A
Correct answer
Explanation
It was originally called L-hexuronic acid.
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ergocalciferol
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biotin
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niacin
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thiamine
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None of these
A
Correct answer
Explanation
Ergocalciferol is a secosteroid formed by a photochemical bond breaking.
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B2
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D2
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D3
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D5
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None of these
B
Correct answer
Explanation
Ergosterol is a provitamin form of vitamin D2 which on exposure to ultraviolet (UV) light causes a chemical reaction that produces vitamin D2.
D
Correct answer
Explanation
No article is required to qualify the noun 'health'.
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Oxalic acid
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Glutermic acid
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Ascorbic acid
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Citric acid
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Formic acid
C
Correct answer
Explanation
Vitamin C is chemically known as ascorbic acid. It is an essential water-soluble vitamin that acts as an antioxidant and is crucial for collagen synthesis, wound healing, and immune function. The other options are different organic acids: oxalic acid, glutamic acid (misspelled as Glutermic), citric acid, and formic acid are not vitamins.
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Thiamine
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Ergocalciferol
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Niacin
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Pantothenic acid
B
Correct answer
Explanation
Ergocalciferol is the chemical name for Vitamin D2, one of the main forms of Vitamin D (along with D3 or cholecalciferol). It is produced by fungi and plants when exposed to UV radiation and is used in Vitamin D supplements.