Pellicles
from class: General Biology I Definition Pellicles are flexible, protective outer layers found in certain protists. They provide structural support and help maintain the cell's shape while allowing flexibility for movement.
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Predict what's on your test 5 Must Know Facts For Your Next Test Pellicles are commonly found in protists like euglenoids and ciliates. Unlike rigid cell walls, pellicles allow for some degree of shape change and movement. The pellicle is composed of protein strips or layers just beneath the cell membrane. In ciliates, the pellicle supports cilia, aiding in locomotion and feeding. Euglena uses its pellicle to perform a unique type of movement called metaboly or euglenoid movement. Review Questions What is the primary function of a pellicle in protists? Which types of protists typically possess pellicles? How does the structure of a pellicle differ from that of a rigid cell wall? "Pellicles" also found in:
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