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

What is the most important nutrient for breakdancers?

  1. Carbohydrates

  2. Protein

  3. Fats

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

Carbohydrates are the body's main source of energy, and breakdancers need a lot of energy to perform their moves.

Multiple choice

What is the term used to describe the process of providing animals with specific nutrients or supplements to address deficiencies or support specific physiological functions?

  1. Nutritional Supplementation

  2. Mineral Supplementation

  3. Vitamin Supplementation

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

Nutritional supplementation involves providing animals with specific nutrients or supplements to address deficiencies or support specific physiological functions, such as growth, reproduction, or immunity.

Multiple choice

Which of the following is a common method used to prevent nutritional deficiencies in animals?

  1. Feed Fortification

  2. Mineral Supplementation

  3. Vitamin Supplementation

  4. Balanced Diets
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Feed fortification, mineral supplementation, vitamin supplementation, and balanced diets are all common methods used to prevent nutritional deficiencies in animals.

Multiple choice

What is the main nutrient found in legumes and pulses?

  1. Carbohydrates

  2. Protein

  3. Fat

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

Legumes and pulses are a good source of protein, which is essential for building and repairing tissues.

Multiple choice

Which of the following is NOT a macronutrient?

  1. Carbohydrates

  2. Proteins

  3. Fats

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

Carbohydrates, proteins, and fats are macronutrients, while vitamins are micronutrients.

Multiple choice

Which of the following is NOT a micronutrient?

  1. Vitamins

  2. Minerals

  3. Carbohydrates

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

Carbohydrates, proteins, and fats are macronutrients, while vitamins and minerals are micronutrients.

Multiple choice

Which vitamin is essential for 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 healthy vision, especially in low-light conditions.

Multiple choice

What are some common antioxidants used to prevent fruit juice spoilage?

  1. Vitamin C

  2. Vitamin E

  3. Beta-carotene

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

Several antioxidants are commonly used to prevent fruit juice spoilage, including vitamin C, vitamin E, and beta-carotene. Vitamin C is a water-soluble antioxidant that can inhibit the growth of microorganisms and enzymatic browning reactions. Vitamin E is a fat-soluble antioxidant that can inhibit lipid oxidation and non-enzymatic browning reactions. Beta-carotene is a carotenoid antioxidant that can inhibit enzymatic browning reactions and scavenge free radicals.

Multiple choice

Which nutrient is essential for the production of rhodopsin, the pigment responsible for vision in dim light?

  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, specifically in the form of retinol, is converted to retinal, which combines with opsin to form rhodopsin in the retina.

Multiple choice

Which nutrient is crucial for the proper functioning of the cornea, the transparent outer layer of the eye?

  1. Vitamin A

  2. Vitamin B12

  3. Vitamin C

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

Vitamin C is essential for the synthesis of collagen, a protein that provides structural integrity to the cornea.

Multiple choice

What is the primary dietary source of vitamin A?

  1. Citrus fruits

  2. Leafy green vegetables

  3. Dairy products

  4. Meat and poultry
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Leafy green vegetables, such as spinach, kale, and collard greens, are excellent sources of vitamin A in the form of beta-carotene, which is converted to retinol in the body.

Multiple choice

Which nutrient plays a role in preventing the development of cataracts?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin E

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

Vitamin C is an antioxidant that helps protect the lens of the eye from oxidative damage, reducing the risk of cataract formation.

Multiple choice

Which nutrient is essential for the proper functioning of the retina?

  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 essential for the proper functioning of the retina, particularly in the conversion of light signals into electrical signals.

Multiple choice

Which nutrient is essential for the production of collagen, a protein that provides structural support to the eye?

  1. Vitamin A

  2. Vitamin B12

  3. Vitamin C

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

Vitamin C is essential for the production of collagen, which is a major component of the cornea and sclera, providing structural support to the eye.

Multiple choice

Which nutrient is responsible for building and repairing body 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 the growth and repair of tissues, as they provide the building blocks for new cells and the maintenance of existing ones.