Finish the sentences so they describe and explain the pattern shown in Fig. 6.1. The pH falls from [BLANK] to [BLANK] during vigorous exercise. The muscles are not receiving enough [BLANK]. The body therefore respires anaerobically. The lactic acid made accumulates in the muscles, creating an [BLANK] debt. It needs [BLANK] minutes for the muscle pH to return to its starting value after exercise. The pH rises once vigorous exercise has stopped because lactic acid is carried in the [BLANK] to the [BLANK]. While this happens, the breathing rate and [BLANK] rate stay high.
Complete the balanced chemical equation for anaerobic respiration in yeast. $\text{C}_6\text{H}_{12}\text{O}_6 \rightarrow \dots$
Yeast is classified in the kingdom fungus. State one cell component that yeast cells have but animal cells do not.