protein Flashcards

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1
Q

what are proteins made out of?

A
  • essential amino acids (building blocks)
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2
Q

name some amino acids

A

histidine, isoleucine, leucine, cosine, methionine, threonine, valine

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3
Q

what is proteins/amino acids function in the body?

A
  • provide structure to cells in body - enzymes increase rate of metabolic reactions - amino acids central role in metabolism of organs and tissues - precursors and regulators of synthesis of neurotransmitters, hormones, DNA and RNA
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4
Q

what does protein balance tell us?

A
  • if a person protein is adequate - measured with protein consumption and how much exits - losses through skin, sweat and hair - mainly urine and faeces
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5
Q

what is the major site for protein synthesis

A

the liver. metabolism of protein - source of energy - liver converts urea to be secreted in urine

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6
Q

how much nitrogen is in 1g of protein

A
  • 6.25g
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7
Q

how is nitrogen entering system worked out?

A
  • protein intake divided by 6.25
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8
Q

what is nitrogen balance?

A

when goes in must eventually come out. protein consumed exceed protein losses 9+ protein Blaine) losses exceeding is a - protein balance

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9
Q

requirements of protein intake

A

enough to avoid a negative protein balance

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10
Q

what is a limitation of nitrogen balance

A
  • no info of tissues, lacks sensitivity, positive balance may not relate to lean body mass
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11
Q
A
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