Question

release are packaged in specific vesicles. after packaging, the vesicles bud off and are stored in the cell until a signal is given for their release. when the appropriate signal is received they move towards the membrane and fuse to release their contents. the cellular organelle, involved in the process described above, is the a nucleus b ribosomes c mitochondria d golgi apparatus

Explanation:

The Golgi apparatus modifies, sorts, and packages proteins and lipids into vesicles for secretion or use within the cell. Vesicles bud off from the Golgi, are stored, and then move to the cell - membrane for release upon receiving a signal. The nucleus contains genetic material, ribosomes are for protein synthesis, and mitochondria are the power - houses of the cell.

Answer:

D. Golgi apparatus