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 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 eye condition is associated with a deficiency of vitamin B2?

  1. Cataracts

  2. Glaucoma

  3. Macular degeneration

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

Vitamin B2 deficiency can lead to ariboflavinosis, a condition that affects multiple organ systems, including the eyes. Ocular manifestations of ariboflavinosis can include corneal vascularization, photophobia, and decreased visual acuity.

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 eye condition is associated with a deficiency of vitamin B3?

  1. Cataracts

  2. Glaucoma

  3. Macular degeneration

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

Vitamin B3 deficiency can lead to pellagra, a condition that affects multiple organ systems, including the eyes. Ocular manifestations of pellagra can include conjunctivitis, keratitis, and decreased visual acuity.

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.

Multiple choice

Which vitamin is crucial for maintaining healthy vision?

  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 maintaining good vision, particularly in dim light, and plays a role in the prevention of night blindness.

Multiple choice

Which vitamin is necessary for the absorption of calcium?

  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 from the intestines, promoting bone health and preventing conditions like osteoporosis.

Multiple choice

Which of the following nutrients is particularly important for a healthy immune system?

  1. Vitamin C

  2. Zinc

  3. Vitamin D

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

Vitamin C, zinc, and vitamin D are all essential nutrients for a healthy immune system.

Multiple choice

Which vitamin is naturally present in milk and is essential for bone health?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin D

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

Milk naturally contains vitamin D, which is essential for bone health. Vitamin D helps the body absorb calcium, which is necessary for strong bones and teeth.

Multiple choice

Which of the following is a common nutritional deficiency among the elderly?

  1. Vitamin D

  2. Vitamin B12

  3. Calcium

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

Vitamin D, Vitamin B12, and Calcium are all common nutritional deficiencies among the elderly. Vitamin D is important for bone health, Vitamin B12 is important for nerve function, and Calcium is important for bone and muscle health.

Multiple choice

Which vitamin is responsible for helping the body absorb calcium?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin D

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

Vitamin D is essential for helping the body absorb calcium from food.

Multiple choice

What is the role of nutrition in wound healing?

  1. Protein is essential for tissue repair

  2. Vitamin C is important for collagen synthesis

  3. Zinc is involved in wound healing

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

Protein, vitamin C, and zinc are all essential nutrients for wound healing.

Multiple choice

Which fruit juice is known for its high vitamin A content and potential benefits for eye health?

  1. Carrot Juice

  2. Mango Juice

  3. Apricot Juice

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

Carrot juice is a good source of vitamin A, which is essential for maintaining healthy vision and supporting overall eye health.

Multiple choice

Which macronutrient is the primary source of energy for athletes during intense exercise?

  1. Carbohydrates

  2. Proteins

  3. Fats

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

Carbohydrates are the body's primary source of energy, especially during high-intensity exercise. They provide the fuel needed for muscles to perform optimally.