i) Yeast (Saccharomyces cerevisiae) is a eukaryotic fungus. Yeast is a unicellular organism that multiplies asexually by the process of budding which is a very fast process. Yeast converts carbohydrates into carbon-di-oxide and alcohol and due to this property only it is highly exploited in the brewery industry. Yeast doubles its population every 80-90 minute, thus when a small amount of yeast is added it multiplies and increases its population to 1000 folds within 24 hours.

ii) Yeast multiplies by the process of budding which is a mode asexual reproduction. From the existing parent cell, a bud arises genetic material duplicates and then get divided into half between the 2 cells. However, newly formed yeast cells mostly do not separate from the parent cell and form long chains of cells.

iii) Mother is the owner of kitchen, and she knows the importance of yeast that means she is aware of yeast’s fermentation properties.

This thing shows that science has influenced our household and our eating habits greatly.