Macromolecules and senescent organelles are catabolized by this subcellular structure.

Lysosomes

Explanation:

 Lysosomes are the type of the organelle that digest the various non functional and the dead decay organelle. The lysosomes are the type of system which as the waste disposal in the cell by digest the material both the outside and inside material of cytoplasm of the cell.

Lysosomes are the type of the enclosed type of organelles membrane which basically contain the array of the enzymes that biological breaking all the polymers such as lipids, carbohydrates and proteins.  

the correct answer is 2 and 4

i think the answer is composed of atoms