Fish Protein and Amino Acids Quiz
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Questions and Answers

Which amino acid is not required in the diet of adults?

  • Arginine (correct)
  • Methionine
  • Lysine
  • Leucine

What are the three categories of fish proteins?

  • Contractile, Fibrous, Globular
  • Enzymic, Structural, Collagen
  • Sarcoplasmic, Myofibrillar, Stroma (correct)
  • Skeletal, Smooth, Cardiac

Which of the following is considered a limiting amino acid?

  • Cystine (correct)
  • Isoleucine
  • Phenylalanine
  • Leucine

What percentage of fish muscle protein is made up of sarcoplasmic proteins?

<p>20-22% (A)</p> Signup and view all the answers

Which of the following functions does sarcoplasmic proteins serve?

<p>Carrying metabolic functions (A)</p> Signup and view all the answers

Which amino acid is rich in fish protein but absent in vegetable proteins?

<p>Lysine (A)</p> Signup and view all the answers

Which enzyme group is commonly involved in protein hydrolysis within sarcoplasmic proteins?

<p>Hydrolases (C)</p> Signup and view all the answers

What is the main characteristic of vegetable proteins compared to fish proteins?

<p>Generally deficient in essential amino acids (A)</p> Signup and view all the answers

Flashcards

Essential Amino Acids

Amino acids that are essential for human health, but cannot be produced by the body and must be obtained through diet.

Vegetable Proteins

Proteins that are found in plants, often lacking in one or more essential amino acids compared to animal proteins.

Limiting Amino Acid

The amino acid that is present in the lowest amount in a protein, limiting its overall nutritional value.

Fish Protein

Fish protein is a complete protein containing all essential amino acids, making it a good source of protein.

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Myofibrillar (Contractile) Protein

Part of the fish muscle that is responsible for contraction and movement. It's made up of filaments called myofibrils, which contain proteins like actin and myosin.

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Sarcoplasmic (Enzymic) Protein

Part of the fish muscle that dissolves readily in water and contains important enzymes for metabolic processes.

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Stroma (Connective Tissue) Protein

Part of the fish muscle that provides structure and support.

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Enzymes in Sarcoplasmic Proteins

The enzymes found in sarcoplasmic protein play vital roles in various biological processes.

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