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 vitamin is essential for blood clotting and wound healing?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin K

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

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

Multiple choice

Which vitamin is necessary for the absorption of 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 the absorption of calcium from the intestines.

Multiple choice

Which nutrient is primarily responsible 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, as well as producing enzymes and hormones.

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 crucial for maintaining healthy vision, especially in dim light conditions.

Multiple choice

Which vitamin is commonly added to white bread to enrich it?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin D

  4. Vitamin B1 (Thiamin)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vitamin B1 (Thiamin) is often added to white bread to enrich it. This vitamin is essential for the body's metabolism of carbohydrates, proteins, and fats.

Multiple choice

What is the primary source of energy for young athletes during exercise?

  1. Protein

  2. Carbohydrates

  3. Fats

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

Carbohydrates are the body's preferred source of energy during exercise, as they are easily broken down and converted into glucose, which is then used for fuel.

Multiple choice

Which of the following supplements is commonly used by young athletes to improve performance?

  1. Creatine

  2. Caffeine

  3. Beta-alanine

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

Creatine, caffeine, and beta-alanine are all supplements that have been shown to improve performance in young athletes, but they should be used under the guidance of a qualified healthcare professional.

Multiple choice

What is the role of vitamins and minerals in youth sports nutrition?

  1. To support energy production

  2. To aid muscle function

  3. To boost immunity

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

Vitamins and minerals play a vital role in youth sports nutrition, as they support energy production, aid muscle function, boost immunity, and contribute to overall health and well-being.

Multiple choice

Which nutrient is particularly important for bone health in older adults?

  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 calcium absorption and bone mineralization, playing a crucial role in maintaining bone health and preventing osteoporosis in older adults.

Multiple choice

Which nutrient is essential for maintaining healthy vision in older adults?

  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, particularly in the form of beta-carotene, is crucial for maintaining healthy vision and preventing age-related macular degeneration, a leading cause of vision loss in older adults.

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.