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

Which of the following vitamins helps in blood clotting?

  1. Vitamin A

  2. Vitamin B

  3. Vitamin E

  4. Vitamin K
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vitamin K is necessary for blood clotting. Blood has platelet cells, which help in clotting of blood at the points of injury. Blood clotting is a complex mechanism. Vitamin K plays an important role as it helps in forming an enzyme, which helps in clotting. Dietary sources of vitamin K are fish livers, egg yolks, soyabean and green leafy vegetables.

Multiple choice

Vitamins help our body to grow and develop normally. The bioavailable form of vitamin C is

  1. sodium acetate

  2. sodium aluminate

  3. sodium ascorbate

  4. sodium benzoate
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sodium ascorbate is a more bioavailable form of vitamin C that is an alternative to taking ascorbic acid as a supplement. The molecular formula of this chemical compound is C6H7NaO6. As the sodium salt of ascorbic acid (vitamin C), it is known as a mineral ascorbate.

Multiple choice

Antioxidants are molecules which can safely interact with free radicals and terminate the chain reaction before vital molecules are damaged. Which among the following calcium salts acts as an antioxidant structurally related to vitamin C?

  1. Calcium formate

  2. Calcium erythorbate

  3. Calcium diglutamate

  4. Calcium citrate malate
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Calcium erythorbate is a food additive. Chemically, it is the calcium 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

Which vitamin is helpful in blood clotting?

  1. Vitamin D

  2. Vitamin C

  3. Vitamin E

  4. Vitamin K
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vitamin K is essential for the synthesis of proteins required for blood coagulation. Without it, the body cannot properly clot blood after an injury.

Multiple choice

What is the chemical name of vitamin C?

  1. Ascorbic acid

  2. Citric acid

  3. Acetic acid

  4. Aceto-acetic acid
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vitamin C is chemically known as ascorbic acid. It is a water-soluble vitamin found in many fruits and vegetables.

Multiple choice

Hemorrhage is casued by the deficiency of

  1. vitamin K

  2. vitamin A

  3. vitamin B

  4. vitamin C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vitamin K is essential for the synthesis of proteins required for blood coagulation. A deficiency leads to an inability to clot blood, resulting in excessive bleeding or hemorrhage.