When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.

Which organ controls breathing? lungs alveoli heart diaphragm

Based on the data in the graphs do you think pepsin and trypsin are found in the same part of the body? explain your answer.