Biology ยท 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 is a good source of vitamin C?

  1. Oranges

  2. Grapefruit

  3. Strawberries

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Oranges, grapefruit, and strawberries are all good sources of vitamin C, which is essential for immune function and skin health.

Multiple choice

Which vitamin is essential for blood clotting and wound healing?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin K

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

Vitamin K is essential for the synthesis of proteins involved in blood clotting and wound healing.

Multiple choice

Which vitamin is necessary for the absorption of calcium?

  1. Vitamin A

  2. Vitamin D

  3. Vitamin E

  4. Vitamin B12
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vitamin D promotes the absorption of calcium from the intestines, ensuring adequate levels of calcium in the body.

Multiple choice

Which vitamin is crucial for the prevention of scurvy?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin E

  4. Vitamin B12
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vitamin C is essential for the synthesis of collagen, a protein that provides structure and strength to connective tissues, preventing scurvy.

Multiple choice

Which vitamin is essential for the conversion of food into energy?

  1. Vitamin A

  2. Vitamin B1 (Thiamine)

  3. Vitamin C

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

Vitamin B1 (Thiamine) plays a vital role in energy metabolism, helping the body convert food into usable energy.

Multiple choice

Which vitamin is necessary for the formation of red blood cells?

  1. Vitamin A

  2. Vitamin B12

  3. Vitamin C

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

Vitamin B12 is crucial for the synthesis of red blood cells and the production of DNA.

Multiple choice

Which vitamin is necessary for the absorption of iron?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin D

  4. Vitamin E
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vitamin C enhances the absorption of iron from food, promoting iron utilization in the body.

Multiple choice

Which vitamin is essential for healthy vision, especially in dim light?

  1. Vitamin A

  2. Vitamin B12

  3. Vitamin C

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

Vitamin A is crucial for maintaining good vision, particularly in low-light conditions.

Multiple choice

Which vitamin is necessary for the formation of red blood cells?

  1. Vitamin A

  2. Vitamin B12

  3. Vitamin C

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

Vitamin B12 is crucial for the synthesis of red blood cells and the production of DNA.

Multiple choice

Which nutrient is essential for the absorption of calcium?

  1. Vitamin D

  2. Vitamin C

  3. Vitamin K

  4. Vitamin B12
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vitamin D is essential for the absorption of calcium.

Multiple choice

Which nutrient is essential for the production of red blood cells?

  1. Iron

  2. Calcium

  3. Vitamin C

  4. Vitamin B12
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Iron is essential for the production of red blood cells.

Multiple choice

Which nutrient is essential for the proper functioning of the immune system?

  1. Vitamin C

  2. Vitamin D

  3. Vitamin K

  4. Vitamin B12
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vitamin C is essential for the proper functioning of the immune system.

Multiple choice

What is the most common nutritional deficiency among athletes training at high altitudes?

  1. Iron

  2. Vitamin D

  3. Carbohydrates

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

Iron deficiency is common among athletes training at high altitudes due to the increased production of red blood cells in response to the lower oxygen levels.

Multiple choice

Which vitamin is responsible for the yellow color of egg yolk?

  1. Vitamin A

  2. Vitamin B12

  3. Vitamin C

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

Vitamin A, also known as retinol, gives egg yolk its characteristic yellow color.

Multiple choice

Which vitamin is involved in the absorption of calcium and is present in egg yolk?

  1. Vitamin A

  2. Vitamin B12

  3. Vitamin C

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

Vitamin D, found in egg yolk, aids in the absorption of calcium from the digestive tract.