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 breakfast juice is a good source of vitamin K?

  1. Orange juice

  2. Apple juice

  3. Grapefruit juice

  4. Green leafy vegetable juice
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Green leafy vegetable juices, such as kale or spinach juice, are rich in vitamin K, which is essential for blood clotting and bone health.

Multiple choice

What is the primary nutrient found in watermelon juice?

  1. Vitamin C

  2. Vitamin A

  3. Potassium

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

Watermelon juice is a good source of lycopene, a powerful antioxidant that has been studied for its potential health benefits, including reducing the risk of certain chronic diseases.

Multiple choice

What other nutrient is commonly found in pumpkin seed milk, contributing to its nutritional value?

  1. Fiber

  2. Vitamin D

  3. Magnesium

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

Pumpkin seed milk is also a good source of magnesium, a mineral involved in various bodily functions, including muscle contraction, nerve transmission, and energy production.

Multiple choice

What is the primary source of vitamin B12 in a vegan diet?

  1. Meat

  2. Dairy

  3. Fortified plant-based foods

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

Vitamin B12 is naturally found in animal products, so vegans need to obtain it from fortified plant-based foods, such as fortified cereals, nutritional yeast, or fortified plant-based milk.

Multiple choice

Which of the following is not a macronutrient?

  1. Carbohydrates

  2. Proteins

  3. Vitamins

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

Carbohydrates, proteins, and fats are the three macronutrients that provide the body with energy and building blocks for growth and repair. Vitamins are micronutrients that are needed in smaller amounts for various bodily functions.

Multiple choice

Which vitamin is essential 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 essential for the production of prothrombin, a protein that is necessary for blood clotting. Without adequate vitamin K, the blood cannot clot properly, which can lead to excessive bleeding.

Multiple choice

What is the primary source of vitamin C in the human diet?

  1. Citrus fruits

  2. Leafy green vegetables

  3. Meat

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

Citrus fruits, such as oranges, grapefruits, and lemons, are the primary source of vitamin C in the human diet. Vitamin C is an important antioxidant that helps protect cells from damage.

Multiple choice

Which of the following is a macronutrient?

  1. Vitamin C

  2. Protein

  3. Calcium

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

Macronutrients are nutrients that the body needs in large amounts to provide energy and build and repair tissues. Protein is a macronutrient that is essential for building and repairing tissues.

Multiple choice

Which of the following is a fat-soluble vitamin?

  1. Vitamin C

  2. Vitamin A

  3. Vitamin B12

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

Fat-soluble vitamins are vitamins that are absorbed along with fats in the diet. Vitamin D is a fat-soluble vitamin that is essential for bone health.

Multiple choice

Which of the following is a good source of vitamin C?

  1. Oranges

  2. Apples

  3. Grapes

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

Oranges are a good source of vitamin C, which is an essential vitamin that is involved in a variety of bodily functions, including immune function and wound healing.

Multiple choice

Which vitamin is essential for bone health and can help prevent osteoporosis in men?

  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 crucial for calcium absorption and bone health. Adequate intake of vitamin D can help prevent osteoporosis, a condition characterized by weak and brittle bones, in men.

Multiple choice

Which macronutrient provides the primary source of energy for cycling?

  1. Protein

  2. Carbohydrates

  3. Fats

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

Carbohydrates, particularly in the form of glycogen, are the main energy source for cycling, providing fuel for muscles during exercise.

Multiple choice

Which of the following is a macronutrient?

  1. Vitamins

  2. Minerals

  3. Carbohydrates

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

Macronutrients are nutrients that the body needs in large amounts. Proteins are one of the three macronutrients, along with carbohydrates and fats.

Multiple choice

What is the main active compound in garlic that is responsible for its health benefits?

  1. Allicin

  2. Quercetin

  3. Kaempferol

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

Allicin is the main active compound in garlic that is responsible for its health benefits.

Multiple choice

Which fruit juice is a rich source of vitamin C?

  1. Orange juice

  2. Apple juice

  3. Grape juice

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

Orange juice is an excellent source of vitamin C, providing about 124% of the recommended daily value in a single cup.