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 of the following is a common nutritional deficiency among older adults?

  1. Vitamin B12

  2. Vitamin C

  3. Vitamin D

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

Vitamin B12 deficiency is prevalent among older adults due to reduced absorption and decreased intake of animal-based foods, which are the primary sources of this nutrient.

Multiple choice

Which nutrient is essential for maintaining a healthy immune system in older adults?

  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 vital for maintaining a healthy immune system and protecting against infections, particularly important for older adults who may have a weakened immune response.

Multiple choice

Which of the following vitamins is typically found in high concentrations in orange juice?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin D

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

Orange juice is a rich source of vitamin C, which is essential for immune function.

Multiple choice

What is the primary antioxidant compound found in cranberry juice?

  1. Anthocyanins

  2. Quercetin

  3. Resveratrol

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

Anthocyanins are the main antioxidants in cranberries and cranberry juice, contributing to their red color and potential health benefits.

Multiple choice

What is the main flavonoid compound found in grape juice?

  1. Quercetin

  2. Resveratrol

  3. Anthocyanins

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

Resveratrol is a flavonoid compound found in grapes and grape juice, known for its potential health benefits, including antioxidant and anti-inflammatory effects.

Multiple choice

Which of the following fruit juices is known for its high content of vitamin K?

  1. Pineapple juice

  2. Mango juice

  3. Kiwi juice

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

Kiwi juice is a good source of vitamin K, which is essential for blood clotting and bone health.

Multiple choice

What is the primary carotenoid compound found in orange juice?

  1. Beta-carotene

  2. Lycopene

  3. Lutein

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

Beta-carotene is the main carotenoid compound in oranges and orange juice, contributing to their orange color and potential health benefits.

Multiple choice

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

  1. Vitamin C

  2. Vitamin D

  3. Vitamin A

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

Vitamin C is a powerful antioxidant that plays a crucial role in supporting the immune system and protecting the body from infections.

Multiple choice

Which vitamin is essential for the absorption of calcium and the maintenance of strong bones?

  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 maintenance of strong bones and teeth.

Multiple choice

Which vitamin is essential for the prevention of night blindness and the maintenance of 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 crucial for maintaining healthy vision, including preventing night blindness and supporting the proper functioning of the retina.

Multiple choice

Which of the following nutrients is essential for maintaining healthy bones and teeth?

  1. Carbohydrates

  2. Proteins

  3. Calcium

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

Calcium is a mineral that plays a crucial role in maintaining strong bones and teeth.

Multiple choice

Which vitamin is responsible for preventing night blindness?

  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, including preventing night blindness.

Multiple choice

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

  1. Vitamin C

  2. Iron

  3. Calcium

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

Iron is a mineral that is necessary for the production of hemoglobin, which carries oxygen in red blood cells.

Multiple choice

Which vitamin is crucial for blood clotting and wound healing?

  1. Vitamin A

  2. Vitamin B12

  3. Vitamin C

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

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

Multiple choice

Which nutrient is essential for maintaining healthy skin, hair, and nails?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin D

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

Vitamin E is an antioxidant that helps protect cells from damage and is important for maintaining healthy skin, hair, and nails.