Arrange the following cell organelles in ascending order of their size:

Identify $X$ and $Y$ in the given figure.

Write the functions of the following:
$(a)$ Centromere
$(b)$ Cell wall
$(c)$ Smooth $ER$
$(d)$ Golgi apparatus
$(e)$ Centrioles

Read the following statements:
$(i)$. Membrane-bounded inclusion bodies are not found in prokaryotic cells.
$(ii)$. Ribosomes are the site of protein synthesis.
$(iii)$. Pili are the surface structure of the bacteria which may play a role in motility.
$(iv)$. The cell membrane of prokaryotes is structurally similar to the eukaryotes.
Choose the option with the correct statements.

Where does protein synthesis occur in animal cells?

Peroxisomes do not have: