Amino Acid Metabolism & Protein Synthesis Quiz

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10 Questions

Which of the following is true about the role of amino acids in the body?

Amino acids are involved in the synthesis of proteins

What is the average protein turnover rate in a 70 kg man?

400 g per day

Where do non-essential amino acids come from?

They are synthesized in the body

How are dietary proteins absorbed by the body?

They are broken down into amino acids before absorption

What happens if there is a deficiency in essential amino acids?

Protein synthesis cannot take place

Which of the following is true about the storage form of proteins in the body?

There is no storage form of proteins in the body

What is the main role of amino acids in the body?

Synthesis of structural and functional proteins

Where do non-essential amino acids come from?

They are synthesized in the body

What is the nitrogen balance in the body?

The rate of protein synthesis is equal to the rate of degradation

How are dietary proteins absorbed by the body?

They are broken down to amino acids before absorption

Study Notes

Amino Acids in the Body

  • Amino acids play a crucial role in the body as the building blocks of proteins.
  • The average protein turnover rate in a 70 kg man is 280-300 grams per day.

Origin of Non-Essential Amino Acids

  • Non-essential amino acids are synthesized by the body from other amino acids.

Absorption of Dietary Proteins

  • Dietary proteins are absorbed by the body in the form of amino acids, which are then used to build new proteins or repair damaged tissues.

Deficiency of Essential Amino Acids

  • A deficiency in essential amino acids can lead to a negative nitrogen balance, muscle wasting, and impaired bodily functions.

Storage Form of Proteins

  • The storage form of proteins in the body is in the form of muscle and liver tissue.

Nitrogen Balance

  • Nitrogen balance refers to the balance between the amount of nitrogen taken in through protein intake and the amount of nitrogen excreted by the body.
  • A positive nitrogen balance indicates that the body is building new proteins, while a negative nitrogen balance indicates that the body is breaking down existing proteins.

Test your knowledge on amino acid metabolism and the role of amino acids in protein synthesis. Learn about the turnover rate of proteins in the body and the sources of non-essential amino acids.

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