Which of the following organelles within the eukaryotic [yoo-KAR-ee-oh-tik] cell functions as the digestive system of the cell, serving both to degrade material taken up from outside the cell and to digest obsolete components of the cell itself?

W) Lysosome

X) Golgi apparatus

Y) Smooth endoplasmic reticulum [EN-duh-plaz-mik ri-TIK-yuh-luhm]

Z) Rough endoplasmic reticulum
W) LYSOSOME