Carbohydrates for fermentation and optimum temperature
Yeast doesn't need a substrate. All it needs are the optimum conditions.
they need heat or sunlight
Yeast requires a source of sugar for energy, water for hydration, a suitable pH level (typically slightly acidic), and a moderate temperature range (around 25-30°C) to survive and thrive. Additionally, yeast needs a lack of harmful contaminants that could inhibit its growth.
Yeast needs warmth, food and moisture to grow while bacteria needs warmth, food , correct ph,oxygen, and time to grow. Moulds need warm, moist conditions and viruses need time and opportunity for the conditions to be right for them to thrive.
Yeast is a living organism. Salt, sugar and flour are compounds that are not alive.
Yeast cells are alive. However, it takes in oxygen in the form of glucose. yeast + glucose -> alcohol + CO2 We know that yeast cells are alive because it produces wastes (alcohol and carbon dioxide) and they reproduce.
Yeast like to grow in warm and moist conditions.
Yeast can survive and ferment in both aerobic (with oxygen) and anaerobic (without oxygen) environments. However, yeast typically prefer aerobic conditions for better growth and metabolism.
yes yeast is alive when u add hot water
The purpose of adding yeast and water in a sugar and yeast experiment is to provide the necessary conditions for fermentation to occur. The yeast consumes the sugar as a food source and produces carbon dioxide gas and alcohol as byproducts. This reaction demonstrates the process of anaerobic respiration in living organisms.
Yeast needs warmth, moisture and some form of sugar to be active and make carbon dioxide gas.
I'm pretty sure its the yeast that makes it rise. did you know that yeast is actually a living organism? its alive.