I'm pretty sure it's both, because while yeast and flour mixed with water smells alcoholic (which is a sign of fermentation), when it's mixed with yeast and water it smells like milk. Also, it barely grows, less than just yeast and water.
Correct me if I'm wrong!
No
Yes, it kills most germs.
Live yeast can be used to inflate a balloon if you give the yeast something to ferment (such as sugar). They then produce carbon dioxide as a waste product that could inflate a balloon. You should not expect it to be buoyant, however, for CO2 is heavy as gases go (considerably heavier than air, for instance). The yeast cannot use salt for much of anything, however.
Most of the time, Ultraviolet radiation will kill or badly hurt most yeasts. As there are so many different kind of yeasts, each different kind of yeast will have a different reaction to this kind of light. There are also certain mutations that may cause yeast to be ultraviolet light sensitive or resistant.
No. It is a yeast, that's all.
If you mix salt with yeast, the rise of the dough will be slowed down and the salt can kill the yeast.
Yes, salt can slow down the growth of yeast in baking, but it does not necessarily kill it. Salt can help control the fermentation process and improve the flavor of the bread.
Chemicals that can kill yeast include bleach, hydrogen peroxide, and strong acids such as sulfuric acid. These chemicals disrupt the yeast cell wall and lead to cell death. It's important to handle these chemicals with caution and follow safety guidelines when using them.
In yeast breads, salt limits the action of yeast by killing it. If you have too much salt, you might kill the yeast too quickly. The bread might also taste salty. In quick breads (those that rise with baking soda and/or baking powder), salt is used to add flavor, so too much salt will just make the bread taste more salty.
As anyone who bakes bread, or brew wines and beers will know, yeast needs a moist, warm environment in which there is dissolved liquid sugar available (not salt). The yeast cells rapidly multiply as the yeast feeds off the sugar, and gives off carbon dioxide gas and alcohol. It is the carbon dioxide gas that will inflate the balloon. Salt would probably kill off the yeast.
Yeast Grows much better in sugar water. They are micro organisms that need the sucrose in the sugar to activate and grow, without the sugar very little would happen. If you used salt water it would most likely kill the yeast.
Yes, chlorine can effectively kill yeast.
Yes, acid has the ability to kill yeast.
The yeast die.
Yeast is a living organism. Salt, sugar and flour are compounds that are not alive.
No.
The salt will bust the yeast cells killing it. Thus the yeast will be useless and not product the gas that is needed for the dough (bread) to rise.