Biology · 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

Fumonsin and zearalenone are examples of:

  1. Vitamins

  2. Mycotoxins

  3. Minerals

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

Fumonisins and zearalenone are toxic compounds produced by certain molds (fungi) that can contaminate feedstuffs. These are classified as mycotoxins.

Multiple choice bio-chemistry digestive system of human absorption of food absorption parts of the digestive system: structure and function

Which of the following substance requires castle's intrinsic factor secreted by stomach for absorbtion in the small intestine?

  1. Aminoacids

  2. Water
  3. Vitamin $C$
  4. Vitamin $B _{12}$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Intrinsic factors which are released by the stomach are used in the ileum of the small intestine for the absorption of vitamin $B _{12}$. These are majorly made up of glycoproteins.

So the correct option is 'Vitamin $B _{12}$'

Multiple choice bio-chemistry digestive system of human absorption of food absorption parts of the digestive system: structure and function

Calcium absorption is always enhanced by the action of the following vitamin

  1. Vitamin A

  2. Vitamin B

  3. Vitamin D

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

Vitamin D helps in the absorption of calcium ion from the walls of the duodenum to the bloodstream and also maintains its level in the body.

So the correct option is 'Vitamin D'.

Multiple choice biology simple nutrients into cells blood and its components components of blood composition of blood

Bilirubin and biliverdin are derived from

  1. Globin

  2. Heme

  3. Iron

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

Bilirubin and biliverdin are derived from heme. The component of haemoglobin responsible for binding oxygen, consists of an iron ion, that binds oxygen and a porphyrin ring, that binds the globin molecules; one molecule binds one molecule of oxygen. Biliverdin results from the breakdown of the heme moiety of hemoglobin in erythrocytes. Bilirubin is the yellow breakdown product of normal heme catabolism, caused by the body's clearance of aged red blood cells which contain hemoglobin.

Multiple choice

Which of the following is a macronutrient?

  1. Water

  2. Vitamins

  3. Carbohydrates

  4. Minerals
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.

Multiple choice

Which macronutrient is essential for the absorption of fat-soluble vitamins?

  1. Proteins

  2. Fats

  3. Carbohydrates

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

Fats are essential for the absorption of fat-soluble vitamins, such as vitamins A, D, E, and K.

Multiple choice

Which fruit is a good source of vitamin C?

  1. Orange

  2. Banana

  3. Apple

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

Oranges are an excellent source of vitamin C, which is essential for immune function and skin health.

Multiple choice

What is the primary antioxidant found in grapes?

  1. Resveratrol

  2. Quercetin

  3. Anthocyanins

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

Grapes, particularly red and purple varieties, are known for their high content of resveratrol, an antioxidant that has been linked to various health benefits, including reducing the risk of heart disease.

Multiple choice

Which fruit is a good source of vitamin A?

  1. Mango

  2. Orange

  3. Apple

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

Mangoes are a good source of vitamin A, which is essential for vision and immune function.

Multiple choice

What is the primary antioxidant found in cherries?

  1. Anthocyanins

  2. Carotenoids

  3. Flavonoids

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

Cherries, particularly tart cherries, are known for their high content of anthocyanins, which are powerful antioxidants that have been linked to various health benefits.

Multiple choice

Which fruit is a good source of vitamin K?

  1. Kiwi

  2. Orange

  3. Banana

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

Kiwis are a good source of vitamin K, which is essential for blood clotting and bone health.

Multiple choice

What is the main type of antioxidant found in citrus fruits?

  1. Vitamin C

  2. Carotenoids

  3. Flavonoids

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

Citrus fruits, such as oranges and grapefruits, are known for their high content of vitamin C, a powerful antioxidant that helps protect cells from damage.