Q:

Blood lactic acid is

safaTerkawi
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2022-08-19
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Blood lactic acid is.

  1. Normally undetectable in resting subjects.
  2. . A product of anaerobic metabolism.
  3. . Increased by a 100-metre dash.
  4. . Not increased during steady state running in a marathon race.
  5. Raised to about 5–10 moles/litre during maximal exercise.
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safaTerkawi
2022-08-19
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A. False The resting level is around one millimole per litre.

B. True It is a marker for anaerobic metabolism.

C. True Almost all the energy used in the 100-metre dash comes from anaerobic metab-olism.

D. False Even though the lactic acid level is steady, it is still raised during steady state exercise.

E. False It rises to 5–10 millimoles per litre.

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