[STEM Lab 7A] W3 - Is yeast alive?

STEM Lab 7A 

W3 - Is yeast alive?

Mr. Diego Vela
Colegio Inglés Americano, A.C.

Multiple Choice

Which of the following is NOT a characteristic of ALL living things?

• They grow and reproduce.

• They drink water.

• They react to their environment.

• They are made out of cells.

• They need energy.

Poll

Is yeast a living thing?

• YES

• NO

Experiment

In a container, we will add: 100 ml of water at –40°C, 4 g of yeast, 10 g of sugar and cover the container with a balloon.
After 15 minutes have passed, observe the balloon for any changes.

Open Ended

What variables can be detected in the previous example?