A cell membrane is like a security guard because they both secure the cell/school and they both let things in and out of the cell/school.

The students fill the school just like the cytoplasm fills the cells.

The principal controls the school and is the head leader of the school just like a nucleus.

The school staff/administration is the cytoskeleton because they keep everything in order and without them the school would fall apart.

The cafeteria makes food just like the smooth er makes lipids and vesticles.

The school bus transports kids to and from school just like the rough er transports proteins.

Ribosomes are teachers because they produce knowledge to students just like they produce proteins.

The Golgi apparatus is like the buildings of a school because they sort the classrooms in their subjects like it sorts proteins.

A vesicle moves and transports moves materials in the cell like an elevator moves people.

The parents of the students at a school are the mitochondria because they pay the tuition and that keeps the school running. Mitochondria produces power for the cell and keeps it running.

The central vacuole stores waste just like a dumpster stores waste.

Dumpster trucks take away and break down the trash just like lysosomes break down cellular waste.

The cell wall is the same as the walls and fences surrounding a school.

The school library is like the chloroplast of a cell because it provides books full of information just like the chloroplast provides food for the cell.