Question

3b. while viewing the gleocapsa on high power, adjust the fine focus knob to bring the cells into and out of focus. you should observe a clear \halo\ around cells. this is the gelatin capsule. label the gelatin capsule on your sketch above.
3c. what function might the gelatin capsule serve?
3d. how does the color of the gleocapsa compare to the bacteria previously observed?

Explanation:

3c. The gelatin capsule in Gleocapsa may serve functions such as protection from desiccation, predation, and harsh environmental conditions, as well as aiding in cell - to - cell adhesion and biofilm formation.
3d. Without information on the color of previously observed bacteria, a direct comparison cannot be made. However, Gleocapsa is often a blue - green color due to the presence of photosynthetic pigments like chlorophyll and phycobilins. Bacteria can have a wide range of colors depending on their pigments and metabolic activities.

Answer:

3c. Protection from environmental stress, adhesion, etc.
3d. Cannot be determined without prior bacterial color info; Gleocapsa is often blue - green due to photosynthetic pigments.