Biology ยท 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

Multiple choice

Which of the following vitamins is essential for the formation of the plasma protein, prothrombin, in the liver?

  1. Vitamin A

  2. Vitamin B

  3. Vitamin C

  4. Vitamin E

  5. Vitamin K
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Vitamin K is a fat soluble vitamin, so our body stores it in fat tissue and the liver. It is best known for its role in helping blood clot. Blood clotting factors are needed for blood to clot (coagulation). Prothrombin or factor II is one of the clotting factors made by the liver. Vitamin K is needed to make prothrombin and other clotting factors.

Multiple choice

Which of the following statements is TRUE regarding the vitamins?

  1. Excess intake of vitamin A leads to severe toxic reactions in the body.

  2. Vitamin B2 deficiency leads to severe muscular disorders in an individual.

  3. Vitamin B12 deficiency causes microcytic anemia in females.

  4. Rickets in adults can be prevented by large doses of vitamin D.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct statement. Excess vitamin A is highly toxic and can cause a variety of neurological problems.

Multiple choice

Which of the following food components functions in transporting vitamins in our body?

  1. Roughage

  2. Minerals

  3. Fats

  4. Carbohydrates

  5. Proteins
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fats play a vital role in maintaining healthy skin and hair, insulating body organs against shock, maintaining body temperature and promoting healthy cell function. Fats also serve as energy stores for the body. Vitamins A, D, E and K are fat-soluble meaning they can only be digested, absorbed and transported in conjunction with fats. Fats are also sources of essential fatty acids, which are an important dietary requirement.

Multiple choice

Orange is a rich source of

  1. vitamin B1

  2. vitamin B2

  3. vitamin B6

  4. vitamin A

  5. vitamin D
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Orange is a rich source of vitamin A.