The endomembrane system refers to the group of membrane bound organelles that are involved in modification, packaging, and transportation of lipids and proteins.
The nuclear envelope, endoplasmic reticulum, golgi apparatus, lysosomes and vacuoles are the components of endomembrane system.
Thus, with some modifications, this system is present in both the plant cell and animal cell.
Mitochondria and plastids are not part of the endomembrane system.
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The components of the endomembrane system are present in both the plant cell and animal cell.