The ____ Gives Structure to Many Unwalled,single-Celled Protists

Question

The ____ gives structure to many unwalled,single-celled protists.  
A) contractile vacuole
B) pellicle
C) Golgi body
D) endoplasmic reticulum
E) nucleus

Accepted Answer

The pellicle gives structure and support to many unwalled, single-celled protists such as Paramecium and Euglena. The contractile vacuole helps maintain osmotic balance, the Golgi body modifies and packages proteins for export, the endoplasmic reticulum synthesizes proteins and lipids, and the nucleus contains genetic material.