Question

Doctors are investigating the case of a patient with defective proteins. Which organelle is most likely the cause?

mitochondrion
cell membrane
cytoplasm
ribosome

Answer 1

The organelle most likely responsible for defective proteins is the **ribosome**. Ribosomes are the sites of protein synthesis in the cell, and if they are malfunctioning, they can produce defective proteins. Mitochondria are involved in energy production, the cell membrane acts as a barrier and regulates what enters and exits the cell, and the cytoplasm is the fluid where cellular processes occur, but none of these functions directly relate to the synthesis of proteins.