Cellular Respiration and Amino Acid Deamination

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What is the main reason the PDCAAS is still the preferred method despite the FAO's recommendation for DIAAS?

The DIAAS method is too complex to implement
The PDCAAS is already widely accepted globally
The DIAAS method is too expensive to implement
Lack of a sufficient database of DIAAS values (correct)

What is the main limitation of the PER method used in Canada?

It is too time-consuming to conduct the tests
It is not effective for evaluating mixed meals
It is too expensive to conduct the tests
It does not account for differences in human and rat growth (correct)

What does the DIAAS method measure?

The amount of protein in a food
The amount of protein absorbed by the body
The digestibility of amino acids in the ileum (correct)
The protein efficiency ratio of a food

What is the purpose of the PER in Canada?

To ensure the food industry makes accurate claims about a product's protein content and/or quality (C) Signup and view all the answers

What is the main advantage of the DIAAS method over the PDCAAS?

It more accurately estimates the amount of amino acids absorbed by the body (C) Signup and view all the answers

What is the typical recommended daily intake of protein according to the text?

1.2 g/kg body weight (D) Signup and view all the answers

Which group of individuals may have even higher protein needs according to the text?

Pregnant women (A) Signup and view all the answers

In the context of protein malnutrition, what is the significance of the deamination process?

It involves the removal of amino groups from amino acids. (C) Signup and view all the answers

What is the main product of the conversion of ammonia during protein metabolism?

Urea (A) Signup and view all the answers

How does a deficiency in protein intake impact the deamination process?

It disrupts the balance between deamination and transamination processes. (A) Signup and view all the answers

What is the byproduct of deamination that is toxic to humans?

Ammonia (D) Signup and view all the answers

Why does the body prefer to use amino acids for protein synthesis rather than energy production?

To prioritize protein synthesis over energy production (D) Signup and view all the answers

What is the primary consequence of protein deficiency in children under the age of five?

Increased risk of mortality (C) Signup and view all the answers

What is the term for the wasting syndrome that occurs when energy from all sources, including protein, is inadequate?

Marasmus (A) Signup and view all the answers

What is the product of ammonia conversion that is excreted in the urine?

Urea (D) Signup and view all the answers

What is the outcome of the deamination process in humans?

Production of ammonia (C) Signup and view all the answers

What is a consequence of severe protein deficiency?

Kwashiorkor, a condition characterized by fatigue, diarrhea, and weakened immune system (A) Signup and view all the answers

What is the primary function of the liver in ammonia conversion?

Detoxification of ammonia through the urea cycle (D) Signup and view all the answers

Which of the following statements is true regarding protein quality assessment?

The protein digestibility-corrected amino acid score (PDCAAS) is a method used to evaluate protein quality (A) Signup and view all the answers

What is the primary source of ammonia in the human body?

Deamination of amino acids (C) Signup and view all the answers