Observe the above graph of lactic acid accumulation in the muscles of

1.	Observe the above graph of lactic acid accumulation in the muscles of an athlete and answer the following questions. a) What was the concentration of lactic acid in the blood to start with? b) What was the greatest concentration reached during the experiment? c) If the trend between points C and D were to continue at the same rate, how long might it take for the original lactic acid level to be reached once again?d) What does high level of lactic acid indicate about the condition of respiration?
Answer» a) It is 20 mg/km³ b) 101 mg/cm³ c) 55 minutes. d) It indicates the accumulation of lactic acid in muscles through anaerobic respiration. The presence of lactic acid in the blood is the main cause of muscular pain and fatigue.

Observe the above graph of lactic acid accumulation in the muscles of an athlete and answer the following questions. a) What was the concentration of lactic acid in the blood to start with? b) What was the greatest concentration reached during the experiment? c) If the trend between points C and D were to continue at the same rate, how long might it take for the original lactic acid level to be reached once again?d) What does high level of lactic acid indicate about the condition of respiration?

Answer»

a) It is 20 mg/km³

b) 101 mg/cm³

c) 55 minutes.

d) It indicates the accumulation of lactic acid in muscles through anaerobic respiration. The presence of lactic acid in the blood is the main cause of muscular pain and fatigue.

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