 | Is yeast a living organism?
To answer the question, "Is yeast alive?," you will test whether the grains of yeast have two characteristics of living things -- the ability to grow and the ability to use energy (referred to as metabolism). |
| | Difficulty: Elementary school |
| | | Difficulty: Elementary school |
| What is the Effect of Different Carbohydrates on Yeast Fermentation?
The purpose of this experiment is to determine the effect of different carbohydrates on the amount of C02 produced in yeast fermentation. If yeast can break down table sugar, a disaccharide, into two molecules of monosaccharides (D-glucose and D-fructose), and ferment those monosaccharides, then it can ferment other disaccharides and monosaccharides. |
| | Difficulty: Middle school |
| What is the effect of selenium-containing, yeast-based foods on rats?
The aim of the two feeding experiments was to compare the effects of the supplementation of food with selenium on the levels of Se-dependent enzymes and thyroid gland hormones, and on the increase of body weight in rats, using two different levels of selenium in the diet in the form of selenite or selenium bound to yeast biomass. If the concentration of selenium in the food was increased from 0.06 |
| | Difficulty: High school |
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