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

All of the following foods lack vitamin C, except

  1. milk

  2. meat

  3. rice

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

Vitamin C, also known as ascorbic acid, is found in fresh fruits, berries and green vegetables. It is one of the water soluble vitamins. Foods that are good sources of vitamin C include papaya, broccoli, brussels, milk, sprouts, blackcurrants, strawberries, cauliflower, spinach, cantaloupe, green peppers, and kiwifruit. 

Multiple choice

Which of the following is most important for the growth of children up to the age of 14?

  1. Fat

  2. Vitamin

  3. Protein

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

Protein is most important for the growth of children up to the age of 14. Protein intake is an indispensable requirement for the growth and maintenance of any living creature. Every cell in our body needs protein to carry out any metabolism. As a general guideline, the recommended dietary allowance (RDA) for protein for adults is 0.8 grams per kilogram of body weight per day. 

Multiple choice

Which of the following have maximum calorific value?

  1. Vitamins

  2. Proteins

  3. Carbohydrates

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

The calories or thermal units contained in one unit of a substance and released when the substance is burned. Carbohydrates have maximum calorific value. 

Multiple choice

Vitamin B2 is also called as

  1. thiamine

  2. riboflavin

  3. niacine

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vitamin B2 is riboflavin, essential for energy metabolism and cellular function. Thiamine is B1, niacin is B3.

Multiple choice

Vitamin B2 (Riboflavin) functions as coenzyme in

  1. Cellular oxidation

  2. NAD

  3. TPP

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

Vitamin B2 (Riboflavin) is a precursor to FAD and FMN, which act as coenzymes in various redox reactions, including cellular oxidation processes in the electron transport chain.

Multiple choice

Which vitamin is destroyed on heating?

  1. C

  2. A

  3. D

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

Vitamin C (ascorbic acid) is highly heat-sensitive and is easily oxidized or destroyed when food is cooked or heated for prolonged periods.

Multiple choice

The chemical name of vitamin B is

  1. nicotinamide

  2. ascorbic acid

  3. riboflavin

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

Thiamine (vitamin B1) was the first B vitamin discovered and is often referred to simply as vitamin B in older contexts. Other options: riboflavin is B2, nicotinamide is a form of B3, and ascorbic acid is vitamin C.

Multiple choice

Egg is a good source of

  1. vitamins

  2. minerals

  3. proteins

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

Eggs are considered a complete food source, containing high-quality proteins, various vitamins (like B12), and minerals (like selenium).