What is the role of the endoplasmic reticulum in the formation of peroxisomes?

• A. The ER stores peroxisomes until they are needed by the cell.
• B. The ER directly synthesizes peroxisomes from its membrane.
• C. The ER transports peroxisomes to the Golgi apparatus for maturation.
• D. The ER provides the initial vesicles that bud off and fuse to form peroxisomes.

Answer: (D)