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

Multiple choice
  1. potassium nitrate

  2. potassium perchlorate

  3. potassium erythorbate

  4. potassium dichromate

Reveal answer Fill a bubble to check yourself
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.

Multiple choice
  1. vitamin E

  2. vitamin B1

  3. vitamin B12

  4. vitamin B5

Reveal answer Fill a bubble to check yourself
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.

Multiple choice
  1. A

  2. C

  3. D

  4. E

Reveal answer Fill a bubble to check yourself
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.

Multiple choice
  1. L-hexuronic acid

  2. thiamine

  3. pantothenic acid

  4. folic acid

  5. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

It was originally called L-hexuronic acid.

Multiple choice
  1. ergocalciferol

  2. biotin

  3. niacin

  4. thiamine

  5. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ergocalciferol is a secosteroid formed by a photochemical bond breaking.

Multiple choice
  1. Oxalic acid

  2. Glutermic acid

  3. Ascorbic acid

  4. Citric acid

  5. Formic acid

Reveal answer Fill a bubble to check yourself
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.

Multiple choice
  1. Thiamine

  2. Ergocalciferol

  3. Niacin

  4. Pantothenic acid

Reveal answer Fill a bubble to check yourself
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.