Saturday, 12 January 2013

Is it Alive?


This is the physical appearance of the 5 samples at the beginning of the experiment.
image
We put the 5 samples in 2 types of conditions: moist cotton wool in a petri dish and a test tube filled with glucose solution respectively. Moist cotton wool was used because all living things require water to survive. Water also has an impact on living cells. Hence, we wanted to observe the changes when each of these samples is placed in a moist surrounding. The use of glucose solution is because glucose is a monosaccharide, a basic form of nutrients. It is easily absorbed by even simple organisms. It also provides a source of food for these organisms
After the experiment, we observed these changes
We also observed the sample under tools to magnify them.
 

No comments:

Post a Comment