Effect of Anti-Glycemic Medicines on Yeast Preparation

Research question - To what extent does increasing concentration (0mg, 250mg,500mg,1000mg, and 2000mg) of anti glycemic medicines Metformin (C 4 H 11 N) and Natural anti glycemic product Black Plum seeds powder (Syzygium cumin) (mg) affect the rate of respiration of Saccharomyces cerevisiae (yeast) measured in terms of gas released (ppm ±0.010) by using the sensor?