

picrocarmine shows clearly the two nuclei situated in the 

 middle of the body, the small micronucleus alongside the 

 large oval macro- or meganucleus. 



Trichocyst Thread 



Ectoplasm or Cortex 

 Endoplasm or Medulla 



Contractile Vacuole 



-"- Food Vacuole 



=^- Micronucleus 

 == Macronucleus 



- Funnel 

 Kg-* Anna 



Trichocy 



Cilia 



FIG. 9. Paramecium. (Magnified.) 



Where is Paramecium found, and how does it move and feed ? 



In stagnant water and in infusions of^decaying organic 

 matter. 



It moves actively by means of the ci]ia. 



Food particles are inwafted by the numerous cilia lining 

 the peristome and passed to the mouth, which opens into 

 the gullet, through which the particles are driven by the 

 action of the undulating membrane. At the bottom of 

 the gullet a food vacuole is formed and carried into the 

 endoplasm. 



How does Paramecium excrete ? 



It gets rid of solid matter through the temporary anus 

 which is situated a little way behind the mouth. The 



D 



