Question

which cell organelle is NOT membrane bound??​

Answer 1

Answer

Explanation:

RIBOSOME  and CENTRIOLE ARE AMEMBRANEOUS.

Answer 2

$\huge{\boxed{\boxed{\underline{\bf ANSWER}}}}$

The cell organelles which are not bounded by any membrane are :

i) Ribosomes.

ii) Centrioles.

Let's discuss a bit about these organelles in a simple way.

$\huge{\underline{\underline{Ribosome}}}$

• Ribosomes is the only cell organelle which is found the both the types of cells - Prokaryotic Cell and Eukaryotic Cell.

• It does not have any membrane surrounding it.

• The main function or role of ribosome is to manufacture proteins required by the cell to undergo its processes.

• Ribosomes are of two types - 70 S and 80 S.

• 70 S ribosomes are present in Prokaryotic Cells and 80 S ribosomes can be seen in Eukaryotic Cell.

$\huge{\underline{\underline{Centriole}}}$

• This organelle is found only in animal cell.

• Plants do not have centrioles in their cells.

• Centrioles also does not have any membrane.

• They have an important function during cell division where the spindle fibres releases out from the centrioles and attaches to the kinetechores.