5.9- Alt sources of energy (PROTEINS)

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5 Terms

1
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Proteins are the….

least preferred cellular energy source (only used when carbohydrates and fats are scarce).

2
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When necessary…

amino acids are broken down into intermediates that enter the cellular respiration pathway.

3
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Oxidative deamination:

  • removal of amino group from amino acids in order to make other metabolic intermediates.

  • Mostly occurs in the liver.

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Remaining ammonia molecule is toxic…

so the body converts it to urea for excretion.

5
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Nucleic acids are not used to generate energy…

but when DNA/RNA gets broken down, nucleotides can be salvaged and recycled.