My Answer :

• Cell Membrane is also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment

function : The main role of the cell membrane is to provide protection to the cell from its surroundings.

• Mitochondrion  is an organelle found in the cells of most eukaryotes, such as animals, plants and fungi.

function : generate most of the chemical energy needed to power the cell's biochemical reactions.

• Chloroplast is plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process.

function : produce energy through photosynthesis and oxygen-release processes, which sustain plant growth and crop yield.

• Cell wall is a structural layer surrounding some types of cells, just outside the cell membrane

function : provide structural strength and support, and also provide a semi-permeable surface for molecules to pass in and out of the cell.

• Ribosome is minute particles consisting of RNA and associated proteins

function : synthesize proteins

• Circular DNA is DNA that forms a closed loop and has no ends.

function : an important role in cancers by regulating the expression of oncogenes, chromosome accessibility, genome replication, immune response, and cellular communications

I hope my answer can help!! <<33