Which part of the cell is responsible for breaking down used organelles and essentially digesting substances?

The correct answer is option Lysosomes. Lysosomes are the part of the cell responsible for breaking down used organelles and essentially digesting substances. The lysosome is an organelle found in all types of animal cells, which contains a large range of digestive enzymes capable of splitting most biological macromolecules. It removes dead parts. It is also commonly known as “the recycling center” of the cell.

The ribosome is an organelle found in all cells involved in the production of proteins by translating messenger RNA. Golgi apparatus is a network of membranes in the cytoplasm involved in the modification and transport of protein. A vacuole is a large membrane-bound vesicle in the cell’s cytoplasm. Therefore, options A, C, and D are not correct. Only option B is correct.