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Can yeast produce a gas when no sugar or other food is available?
Wiki User
∙ 13y ago
If there is nothing to metabolize, which is what yeast are doing with sugar, then they will most likely not grow and not produce any CO2. With that said, there are many strains that can continue to grow and reproduce with other chemical sources, not all of which create CO2 as a bi-product. That is to say, that sugar is not the only thing they can "eat."
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoAll yeast species carry out cellular respiration and some are capable of fermentation, but that is irrelevant to sugar availability. Many species will die without sugar, but then again there are many species that can convert alcohols, organic acids (acetic/sorbic/benzoic), and lipids to sugar and then metabolize it. If these are not available as food, some begin to borrow nutrients from their own structure.
Wiki User
∙ 10y agoThe primary thing that happens when sugar is added to yeast in dough is that it expands. The sugar provides a source of food which makes the yeast grow.
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Is yeast produce a gas when sugar is Available?
No, combining yeast with sugar will not produce gas. Yeast must be dissolved in water with starch or sugar in order to begin fermentation producing CO2 gas.
Do you expect yeast to produce gas when sugar is available?
Yeast will produce gas if sugar, water, and warmth are available as long as the yeast is still alive. If it is too old or has been too hot and the yeast has died it won't create the gas.
Do you expect yeast to produce a gas when sugar is available?
Yes, in the presence of sugar, yeast ferments releasing carbon dioxide (which makes the bubbles in bread dough).
Why yeast can produce its own food?
Yeast cannot produce their own foods. The yeast do not have chlorophyll. Yeast must rely on other ways and sources to get food. Yeast mostly feed on sugar.
Can yeast be altered so it cannot produce a gas when sugar is available?
Yeast can be killed with heat, that is why you use warm water to start it, not hot.
Can yeast produce CO2 with out sugar?
yeast is a living organism and every living organism needs energy, and yeasts energy comes from sugar.when the yeast respires the sugar it will cause the yeast to give off co2.
What does dry yeast need to produce gas?
Warm liquid and sugar.
Why does cornmeal work with yeast to produce gas?
Yeast eats the sugar in the syrup. It then poops out co2 and alcohol. The carbon is a byproduct that comes from the yeast after eating sugars.
How long does a Sugar Yeast CO2 Generator produce CO2?
Carbon dioxide is the result of aerobic(oxygenated) respiration of yeast along with ethanol, as long as there is sugar and oxygen the yeast will produce CO2 but will cease if it is too hot/cold or if ethanol levels rise high enough to kill the yeast
What is alcoholic fermentation and where does it occur?
Yeast turns sugar into alcohol and carbon dioxide to produce energy (anaerobic respiration), it occurs just about wherever there is yeast and sugar.
Do yeast cells make their own food?
No. Yeast cells need some type of sugar to digest and produce gas.
What happens when you put a teaspoon of yeast in a test tube with a pinch of sugar and leave it for half an hour?
If both the yeast and the sugar are dry, then nothing. However, if you mix them together with warm water, the yeast will ferment the sugar and produce ethanol and carbon dioxide.
