Question

label and use this figure to explain how the elements of the endomembrane system function together to secrete a protein and to digest a cellular component.

Explanation:

The endomembrane system includes the nuclear envelope, endoplasmic reticulum (ER), Golgi apparatus, lysosomes, and vesicles. The nucleus contains DNA which is transcribed into mRNA. mRNA exits the nucleus and goes to the rough ER where proteins are synthesized. These proteins are then transported in transport vesicles to the Golgi apparatus for modification and sorting. Lysosomes, which bud off from the Golgi, contain enzymes to digest cellular components. Vesicles also transport materials to and from the plasma - membrane for secretion or uptake.

Answer:

The nucleus provides genetic information for protein synthesis. The rough ER synthesizes proteins. Transport vesicles carry these proteins to the Golgi apparatus. The Golgi modifies and sorts the proteins. Lysosomes, from the Golgi, digest cellular components. Vesicles also facilitate secretion and uptake at the plasma - membrane, all working together as part of the endomembrane system.