20 Questions
What is the main reason the PDCAAS is still the preferred method despite the FAO's recommendation for DIAAS?
Lack of a sufficient database of DIAAS values
What is the main limitation of the PER method used in Canada?
It does not account for differences in human and rat growth
What does the DIAAS method measure?
The digestibility of amino acids in the ileum
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
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
What is the typical recommended daily intake of protein according to the text?
1.2 g/kg body weight
Which group of individuals may have even higher protein needs according to the text?
Pregnant women
In the context of protein malnutrition, what is the significance of the deamination process?
It involves the removal of amino groups from amino acids.
What is the main product of the conversion of ammonia during protein metabolism?
Urea
How does a deficiency in protein intake impact the deamination process?
It disrupts the balance between deamination and transamination processes.
What is the byproduct of deamination that is toxic to humans?
Ammonia
Why does the body prefer to use amino acids for protein synthesis rather than energy production?
To prioritize protein synthesis over energy production
What is the primary consequence of protein deficiency in children under the age of five?
Increased risk of mortality
What is the term for the wasting syndrome that occurs when energy from all sources, including protein, is inadequate?
Marasmus
What is the product of ammonia conversion that is excreted in the urine?
Urea
What is the outcome of the deamination process in humans?
Production of ammonia
What is a consequence of severe protein deficiency?
Kwashiorkor, a condition characterized by fatigue, diarrhea, and weakened immune system
What is the primary function of the liver in ammonia conversion?
Detoxification of ammonia through the urea cycle
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
What is the primary source of ammonia in the human body?
Deamination of amino acids
Learn about how the reactant of cellular respiration is influenced by the side chain of the original amino acid, and the process of deamination leading to the formation of toxic ammonia which is subsequently converted into urea for excretion. Understand why proteins are not the preferred fuel source due to the body's preference for utilizing amino acids in protein synthesis.
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