Which of the following is not a source of proteins?

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UP TGT Physical Education 2021 Official Paper
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  1. Egg
  2. Meat
  3. Edible oil
  4. Milk

Answer (Detailed Solution Below)

Option 3 : Edible oil
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Detailed Solution

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Concept:

Nutrients:

  • The food we consume breaks down to simpler products before it is absorbed and utilized by the body.
  • These simpler substances are called nutrients.
  • The human body utilises nutrients for building and repairing, obtaining energy, and protection from diseases.

Explanation:

Protein:

  • Proteins are called building blocks of our body.
  • About 20 percent of our body weight comes from proteins.
  • Proteins are essential for the growth and repair of muscle and other body tissues.
  • Proteins are made of amino acids that contain the elements carbon, hydrogen, oxygen, and nitrogen.
  • We obtain proteins from animal as well as vegetable sources.
  • Proteins of animal origin are found in milk, eggs, cheese, fish, and meat.

Thus, edible oil is not a source of proteins.

Additional InformationCarbohydrate:

  • Carbohydrates are the main source of energy for our bodies.
  • There are three major categories of carbohydrates, viz. starch, sugar, and cellulose.
  • Our body breaks down sugar and starch into glucose to provide energy.

Fat:

  • Fats and oils are concentrated sources of energy.
  • Fats are substances that our body stores for future use.
  • These are classified as simple lipids (e.g. triglycerides), compound lipids (e.g. phospholipids), and derived lipids (e.g. cholesterol).
  • The major sources are ghee, butter, milk, cheese, eggs, fish, and meat, vegetable oils are groundnut, mustard, sesame, coconut, etc. 

Vitamin:

  • Vitamins are organic substances that we require in adequate quantities for good health.
  • The human body, however, cannot synthesise them.
  • Therefore, we need to consume natural sources such as fruits and vegetables.
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