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 is essential for red blood cell production and oxygen transport in the body?

  1. Calcium

  2. Iron

  3. Vitamin C

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

Iron is a vital nutrient for red blood cell production and oxygen transport, and its deficiency can lead to anemia.

Multiple choice

Which nutrient is particularly important for pregnant women to support the growth and development of the fetus?

  1. Calcium

  2. Folate

  3. Iron

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

Folate is crucial for the prevention of neural tube defects in the fetus and is recommended for pregnant women to consume in sufficient amounts.

Multiple choice

Which nutrient is essential for bone health and is often lacking in the diets of the elderly?

  1. Calcium

  2. Iron

  3. Vitamin C

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

Vitamin D is crucial for calcium absorption and bone health, and its deficiency is common among the elderly, leading to an increased risk of osteoporosis.

Multiple choice

Which nutrient is essential for the proper functioning of the nervous system and is often deficient in the diets of vegans?

  1. Calcium

  2. Iron

  3. Vitamin B12

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

Vitamin B12 is primarily found in animal products, and vegans need to consume fortified foods or supplements to ensure adequate intake.

Multiple choice

Which nutrient is essential for energy production and is often lacking in the diets of athletes?

  1. Carbohydrates

  2. Proteins

  3. Fats

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

Carbohydrates are the primary energy source for the body, and athletes have increased energy needs due to their intense physical activity.

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 building and repairing body tissues, including muscles, bones, and skin.

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 healthy vision, especially night vision.

Multiple choice

Which nutrient helps the body absorb iron?

  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 enhances the absorption of iron from plant-based foods.

Multiple choice

Which nutrient is essential for blood clotting and wound healing?

  1. Vitamin K

  2. Vitamin B12

  3. Vitamin D

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

Vitamin K is crucial for blood clotting and promoting wound healing.

Multiple choice

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

  1. Iron

  2. Vitamin B12

  3. Vitamin C

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

Iron is essential for the production of red blood cells, which carry oxygen throughout the body.

Multiple choice

Which nutrient is crucial for maintaining a healthy immune system?

  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 maintaining a healthy immune system and protecting against infections.

Multiple choice

Which nutrient is necessary for the production of energy in cells?

  1. Carbohydrates

  2. Proteins

  3. Fats

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

Carbohydrates are broken down into glucose, which is used for energy production in cells.

Multiple choice

Which macronutrient is the primary source of energy during 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 preferred source of energy during exercise, as they can be broken down and utilized quickly.

Multiple choice

Which nutrient is essential for maintaining healthy bones and reducing the risk of osteoporosis?

  1. Vitamin D

  2. Calcium

  3. Iron

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

Calcium is essential for maintaining healthy bones and reducing the risk of osteoporosis.

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.