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 macronutrient provides the body with energy?

  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.

Multiple choice

Which macronutrient is 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 the building blocks of the body's tissues.

Multiple choice

Which macronutrient is responsible for storing energy and insulating the body?

  1. Carbohydrates

  2. Proteins

  3. Fats

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

Fats are stored in the body's adipose tissue and provide insulation.

Multiple choice

Which vitamin 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

Vitamin D is essential for the absorption of calcium, which is necessary for bone health.

Multiple choice

Which vitamin is essential for immune function?

  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 the production of white blood cells, which fight infection.

Multiple choice

Which vitamin is essential for 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 essential for the production of rhodopsin, a pigment necessary for vision in dim light.

Multiple choice

What supplements can archers take to improve their 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 can improve archer performance.

Multiple choice

Which of the following nutrients can interfere with the metabolism of warfarin?

  1. Vitamin K

  2. Vitamin C

  3. Iron

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

Vitamin K is a cofactor for the enzyme that converts warfarin to its inactive form. Therefore, high intake of vitamin K can decrease the effectiveness of warfarin.

Multiple choice

Which of the following dietary factors can increase the risk of bleeding in patients taking warfarin?

  1. High intake of vitamin K

  2. High intake of vitamin C

  3. High intake of iron

  4. High intake of alcohol
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Alcohol can interfere with the metabolism of warfarin and increase the risk of bleeding.

Multiple choice

Which of the following nutrients can interfere with the metabolism of phenytoin?

  1. Vitamin D

  2. Vitamin C

  3. Folic acid

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

Vitamin D, vitamin C, and folic acid can all interfere with the metabolism of phenytoin. Vitamin D can increase the metabolism of phenytoin, while vitamin C and folic acid can decrease the metabolism of phenytoin.

Multiple choice

Which of the following dietary factors can increase the risk of bone loss in patients taking glucocorticoids?

  1. High intake of calcium

  2. High intake of vitamin D

  3. High intake of protein

  4. High intake of alcohol
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Alcohol can interfere with the metabolism of glucocorticoids and increase the risk of bone loss.

Multiple choice

Which of the following nutrients can interfere with the metabolism of methotrexate?

  1. Folic acid

  2. Vitamin B12

  3. Iron

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

Folic acid is a cofactor for the enzyme that converts methotrexate to its inactive form. Therefore, high intake of folic acid can decrease the effectiveness of methotrexate.

Multiple choice

Which of the following drugs can interfere with the absorption of vitamin A?

  1. Mineral oil

  2. Orlistat

  3. Cholestyramine

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

Mineral oil, orlistat, and cholestyramine can all interfere with the absorption of vitamin A. Mineral oil can prevent the absorption of vitamin A in the small intestine, while orlistat and cholestyramine can bind to vitamin A and prevent its absorption.

Multiple choice

Which vitamin is most abundant in eggs?

  1. Vitamin A

  2. Vitamin C

  3. Vitamin D

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

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

Multiple choice

Which vitamin is responsible for blood clotting?

  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 responsible for the production of prothrombin, a protein necessary for blood clotting.