VALID Science 10 Practice Questions - NSW VALID Science 10 Assessment Exam

If the temperature of a yeast culture is increased from 20°C to 35°C, then carbon dioxide production will increase because enzyme activity rises. Yeast fermentation produces carbon dioxide gas because yeast cells prefer warmer environmental conditions. Fermentation is an essential biological process that makes bread dough rise faster than baking soda. Higher temperatures make yeast cells happier, which results in better tasting baked goods.