Respiration in Yeast!

In this activity, yeast and glucose solution are placed in plastic bottles covered with balloons. One bottle is sealed off with oil to block air contact, demonstrating differences in aerobic and anaerobic respiration. The amount of CO₂ collected in the balloons indicates the rate of respiration, showing that yeast produce more CO₂ during aerobic respiration and less during anaerobic conditions. This illustrates that yeast are facultative anaerobes capable of surviving without oxygen. 

Learning Objective:

To compare aerobic and anaerobic respiration in yeast, highlighting energy production differences and adaptability. 

Keywords:

Yeast respiration, Aerobic vs Anaerobic, CO₂ production, Facultative anaerobes, energy generation.