Is the yeast we use for baking bread considered "alive"? Students in biology class made the claim that yeast is a living thing. To find evidence, they were given a beaker containing warm water (22oC). To that, they added one package of dry baker’s yeast and 0.5 grams of sugar. After waiting 20 minutes, the students made the observations recorded in the data table. They also used a dropper to collect a sample of the liquid containing the yeast and make a microscope slide. What evidence could be used to support their initial claim? All BUT ONE could apply.
Responses
A Yeast is made of cells.Yeast is made of cells.
B The yeast cells contain DNA.The yeast cells contain DNA.
C The yeast responded to changes in the environment.The yeast responded to changes in the environment.
D One yeast cell is budding or reproducing.
