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 vitamin is known as the "sunshine vitamin" and is produced in the skin upon exposure to sunlight?

  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 known as the "sunshine vitamin" because it is produced in the skin when exposed to sunlight. It is essential for bone health and calcium absorption.

Multiple choice

Which vitamin is necessary for the formation of collagen, a protein found in skin, bones, and connective tissues?

  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 necessary for the formation of collagen, a protein found in skin, bones, and connective tissues. It is also an antioxidant that helps protect cells from damage.

Multiple choice

Which vitamin is involved in converting food into energy and is found in whole grains, legumes, and nuts?

  1. Vitamin A

  2. Vitamin B1

  3. Vitamin C

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

Vitamin B1, also known as thiamine, is involved in converting food into energy and is found in whole grains, legumes, and nuts. It is essential for maintaining a healthy nervous system.

Multiple choice

Which vitamin is necessary for the absorption of calcium and is found in oily fish, eggs, and fortified foods?

  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 necessary for the absorption of calcium and is found in oily fish, eggs, and fortified foods. It is also produced in the skin upon exposure to sunlight.

Multiple choice

Which vitamin is necessary for the formation of red blood cells and is found in citrus fruits, strawberries, and bell peppers?

  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 necessary for the formation of red blood cells and is found in citrus fruits, strawberries, and bell peppers. It is also an antioxidant that helps protect cells from damage.

Multiple choice

Which vitamin is necessary for the formation of myelin, a protective sheath around nerve cells, and is found in meat, fish, and dairy products?

  1. Vitamin A

  2. Vitamin B12

  3. Vitamin C

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

Vitamin B12 is necessary for the formation of myelin, a protective sheath around nerve cells, and is found in meat, fish, and dairy products. It is also essential for the production of red blood cells.

Multiple choice

Which vitamin is necessary for the formation of rhodopsin, a pigment in the retina of the eye that is responsible for vision in dim light, and is found in carrots, sweet potatoes, and spinach?

  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 necessary for the formation of rhodopsin, a pigment in the retina of the eye that is responsible for vision in dim light, and is found in carrots, sweet potatoes, and spinach. It is also essential for maintaining healthy skin and mucous membranes.

Multiple choice

Which vitamin is necessary for the formation of coenzymes that are involved in various metabolic reactions, and is found in meat, poultry, and fish?

  1. Vitamin A

  2. Vitamin B12

  3. Vitamin C

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

Vitamin B12 is necessary for the formation of coenzymes that are involved in various metabolic reactions, and is found in meat, poultry, and fish. It is also essential for the production of red blood cells.

Multiple choice

What is the primary nutrient found in cheese?

  1. Protein

  2. Carbohydrates

  3. Fats

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

Cheese is an excellent source of protein, providing essential amino acids for the body.

Multiple choice

Which vitamin is commonly found in cheese?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin D

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

Cheese is a good source of vitamin D, which is important for bone health and immune function.

Multiple choice

Which of the following is an example of a cofactor?

  1. Iron

  2. Magnesium

  3. Vitamin B12

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

Iron, magnesium, and vitamin B12 are all examples of cofactors that play crucial roles in enzyme activity.

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

Vitamins are micronutrients, not macronutrients. Macronutrients are nutrients required in large amounts by the body, while micronutrients are needed in smaller quantities.

Multiple choice

Which vitamin is essential for maintaining 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, particularly night vision and the ability to distinguish colors.

Multiple choice

Which vitamin is crucial for preventing scurvy?

  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 preventing scurvy, a disease caused by vitamin C deficiency, which can lead to bleeding gums, skin problems, and impaired wound healing.

Multiple choice

Which of the following vitamins is essential for maintaining healthy skin and protecting against air pollution damage?

  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 a powerful antioxidant that helps to neutralize free radicals and protect the skin from environmental damage, including air pollution.