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 nutrients is typically found in cookies and biscuits?

  1. Fiber

  2. Protein

  3. Calcium

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

Cookies and biscuits can be a source of fiber, which is important for digestive health.

Multiple choice

What is the role of lipids in the absorption of fat-soluble vitamins?

  1. They act as carriers for the vitamins.

  2. They enhance the solubility of the vitamins in water.

  3. They regulate the release of the vitamins from food.

  4. They convert the vitamins into active forms.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lipids act as carriers for fat-soluble vitamins, such as vitamins A, D, E, and K. These vitamins are absorbed along with dietary lipids in the small intestine. The lipids help to solubilize the vitamins and facilitate their absorption into the bloodstream.

Multiple choice

Which nutrient is enhanced in Golden Rice?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin D

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

Golden Rice is engineered to produce beta-carotene, which is converted into vitamin A in the human body, addressing vitamin A deficiency.

Multiple choice

How does Golden Rice address vitamin A deficiency?

  1. By directly providing vitamin A

  2. By producing beta-carotene, which is converted to vitamin A in the body

  3. By increasing the absorption of vitamin A from other food sources

  4. By reducing the need for vitamin A supplements
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Golden Rice contains beta-carotene, which is converted into vitamin A in the human body, providing a dietary source of this essential nutrient.

Multiple choice

Which of the following is NOT a macronutrient?

  1. Carbohydrates

  2. Proteins

  3. Vitamins

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

Vitamins are micronutrients, while carbohydrates, proteins, and fats are macronutrients.

Multiple choice

Which of the following is NOT a macronutrient?

  1. Carbohydrates

  2. Proteins

  3. Vitamins

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

Vitamins are micronutrients, not macronutrients.

Multiple choice

Which nutrient is essential for building and repairing tissues?

  1. Carbohydrates

  2. Proteins

  3. Fats

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

Proteins are essential for building and repairing tissues.

Multiple choice

Which nutrient is essential for producing red blood cells?

  1. Vitamin C

  2. Vitamin B12

  3. Iron

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

Iron is essential for producing red blood cells.

Multiple choice

Which of the following is an example of a nutraceutical?

  1. Green tea extract

  2. Multivitamin

  3. Creatine

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

Green tea extract is a dietary supplement that is made from the leaves of the green tea plant. It has been shown to have a number of health benefits, including reducing the risk of heart disease, cancer, and Alzheimer's disease.

Multiple choice

Which analytical technique is commonly used for determining the vitamin C content of food?

  1. High-Performance Liquid Chromatography (HPLC)

  2. Gas Chromatography-Mass Spectrometry (GC-MS)

  3. Spectrophotometry

  4. Atomic Absorption Spectroscopy (AAS)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Spectrophotometry is commonly used for determining the vitamin C content of food, as it allows for the quantification of vitamin C based on its absorbance at a specific wavelength.

Multiple choice

Which vitamin is essential for maintaining healthy vision?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin D

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

Vitamin A is essential for maintaining healthy vision, particularly night vision and the ability to see in dim light.

Multiple choice

Which nutrient is essential for the development of the brain and nervous system in children?

  1. Calcium

  2. Iron

  3. Omega-3 fatty acids

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

Omega-3 fatty acids, particularly DHA, are crucial for the development of the brain and nervous system in children.

Multiple choice

Which vitamin is necessary for the absorption of calcium and the prevention of rickets?

  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 is essential for the absorption of calcium and the prevention of rickets, a condition that affects bone development.

Multiple choice

Which nutrient is important for the development of the immune system and the prevention of infections?

  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 is essential for the development of the immune system and the prevention of infections, supporting the body's ability to fight off illness.

Multiple choice

Which nutrient is important for the development of healthy skin, hair, and nails?

  1. Vitamin A

  2. Vitamin B12

  3. Vitamin C

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

Vitamin A is essential for the development of healthy skin, hair, and nails, supporting their growth and maintenance.