Responds+to+stimuli+(maintains+homeostais)

Amanda Mezzia, Lauren Dinnebiel, Tetsu Tonegawa, & Brandon Roth

Question: Would the unknown substances be living if the onion turns purple, responding to stimuli?

Hypothesis: If the onion turns purple, the unknown substance is living, because the onion is responding to stimuli.

Protocol 1. Take a thin layer of onion, unknown A, and distilled water, and make a coverslide. 2. Observe under high and low power, and draw your observations in the power that is more clear. 3. Then add 0.9% NaCl, and repeat step two. 4. Next, add 10% NaCl, and repeat step two again. 5. Then take a new slide, and repeat all steps, all though with unknown B. With completed, do the same with unknown C.