A non-membrane bound organelle 'X' is found in all living cells. In a typical plant cell, 'X' is found in the cytoplasm and is also located inside two distinct organelles 'Y' and 'Z'. What is the membrane status of organelles 'Y' and 'Z'?

Step-by-step solution

Organelle 'X' is the ribosome, which is a non-membrane bound organelle found universally in all cells. According to NCERT, within a eukaryotic cell, ribosomes are found not only in the cytoplasm but also within two organelles: chloroplasts (in plants) and mitochondria. They are also found attached to the surface of the rough endoplasmic reticulum. Therefore, the organelles 'Y' and 'Z' that contain ribosomes inside them are chloroplasts and mitochondria. Both chloroplasts and mitochondria are double membrane-bound o