The diagram is not clear but I will only try to answer what I can see
A is the pilus and it help the bacteria to attach itself to a specific surfaces or to other cells
B is the cytoplasm and it protect the cell from damages and also store molecules required for cellular processes
C is the plasma membrane they keep toxic substance out of the cell and regulate the in and out of specific molecule
K is the chloroplast and it store chlorophyll which is responsible for the color pigment
M is the large vacoule, and it stores waste , water and nutrients in the cell
I can’t see L well , that is why am unable to answer it
Thank you