Which of the following components is NOT correctly matched with its function?

The component that is not correctly matched with its function is the endoplasmic reticulum, which is stated to be involved in the digestion of unneeded molecules. The endoplasmic reticulum (ER) primarily plays roles in the synthesis and transport of proteins and lipids. The rough ER is studded with ribosomes and is responsible for the production of proteins, while the smooth ER is involved in lipid synthesis and detoxification processes.

In contrast, the process of digestion of unneeded molecules is predominantly carried out by lysosomes, which contain enzymes that break down waste materials and cellular debris. Thus, the function attributed to the endoplasmic reticulum is inaccurate in this context.

The other components mentioned, such as the Golgi apparatus, nucleus, and mitochondria, are appropriately matched with their respective functions: the Golgi apparatus modifies and sorts proteins, the nucleus serves as the storage site for DNA, and the mitochondria are crucial for energy production through the process of cellular respiration.