To show how the factor, temperature, has an optimum level that affects the amount of growth in yeast, therefore, the production of carbon dioxide.
The main purpose of cellular respiration is to convert glucose (sugar molecules) into ATP energy. Yeasts are single-celled fungi and for them to grow they need water, a food source (glucose), and the right temperature and pH. They are also facultative anaerobe, which means that yeast can respire or ferment depending upon environmental factors. Aerobic respiration will take place if there is oxygen present. Without oxygen present, fermentation occurs (anaerobic respiration). During alcoholic fermentation, the glucose produces carbon dioxide and alcohol. The scientists hypothesized that, if the temperature is higher then the carbon dioxide will increase. In the lab, the scientists added sugar (food source), warm water (activate yeast from a dormant …show more content…
Then, the scientists tested different variables to discover which independent variable makes yeast grow best under various conditions. The scientists measured the circumference of the balloon after certain increments of time in order to find out how much carbon dioxide the yeast produced.
From this lab, the scientists concluded that a higher temperature is needed for cellular respiration to take place. According to the experimented data, after 15 minutes, the two flasks that were placed in a hot water bath had produced approximately 4cm3of carbon dioxide. Whereas, the two cold flasks didn’t produce any carbon dioxide in their balloons because the data states 0cm3.This data supports the scientist’s hypothesis that a higher temperature will increase the amount of carbon dioxide produced. In the corrected data, the
The main purpose of cellular respiration is to convert glucose (sugar molecules) into ATP energy. Yeasts are single-celled fungi and for them to grow they need water, a food source (glucose), and the right temperature and pH. They are also facultative anaerobe, which means that yeast can respire or ferment depending upon environmental factors. Aerobic respiration will take place if there is oxygen present. Without oxygen present, fermentation occurs (anaerobic respiration). During alcoholic fermentation, the glucose produces carbon dioxide and alcohol. The scientists hypothesized that, if the temperature is higher then the carbon dioxide will increase. In the lab, the scientists added sugar (food source), warm water (activate yeast from a dormant …show more content…
Then, the scientists tested different variables to discover which independent variable makes yeast grow best under various conditions. The scientists measured the circumference of the balloon after certain increments of time in order to find out how much carbon dioxide the yeast produced.
From this lab, the scientists concluded that a higher temperature is needed for cellular respiration to take place. According to the experimented data, after 15 minutes, the two flasks that were placed in a hot water bath had produced approximately 4cm3of carbon dioxide. Whereas, the two cold flasks didn’t produce any carbon dioxide in their balloons because the data states 0cm3.This data supports the scientist’s hypothesis that a higher temperature will increase the amount of carbon dioxide produced. In the corrected data, the