Question

select the part whose main job is to break down waste and worn - out cell parts. vacuole cell membrane lysosome rough endoplasmic reticulum

Explanation:

• Vacuole: Stores substances like water, nutrients, and waste in plant cells (in animal cells, they are smaller and less prominent in waste - breakdown compared to lysosomes).
• Cell membrane: Regulates the movement of substances in and out of the cell, not mainly for breaking down waste.
• Lysosome: Contains digestive enzymes to break down waste materials, worn - out cell organelles, and engulfed pathogens.
• Rough endoplasmic reticulum: Involved in protein synthesis (due to ribosomes on its surface), not waste breakdown.

Answer:

lysosome