The cell membrane is like the parents because the parents control who takes their kids to school and what school their children go to.

The cytoplasm is like school buildings because cytoplasm contains dissolved substances like school buildings contain students.

The nucleus is like the principal because it controls the center of the cell, similar to how a principal runs the school.

The cytoskeleton is like the students because it gives the cell structure similar to how the students provide structure and purpose for the school.

The smooth endoplasmic reticulum is similar to the kitchen at a school because it produces lipids and vesicles similar to how the kitchen makes food for students.

The rough endoplasmic reticulum is like the cafeteria because it produces and provides proteins for the cell similar to how the cafeteria produces food for the students.

Ribosomes are like material providers for schools because ribosomes produce proteins for the cell similar to how the material providers give school supplies to schools (books, pencils, paper, etc.)

The Golgi apparatus is similar to warehouse workers that package materials to be transported to schools because they package and prepare proteins for the cell.

The vesicles are like buses because they transport proteins similar to how buses transport students.

Mitochondria are like cheerleaders because they provide power/energy for the cell similar to how cheerleaders provide spirit/energy for the school.

The vacuole is like cabinets/lockers at school because it holds the waste and other things for the cell similar to how lockers/cabinets hold materials and objects for students and teachers.

Lysosomes are like trash cans because they break down waste similar to how trash cans hold waste at schools.

The cell wall is like school gates because it surrounds the cell similar to how a gate surrounds a school.

Chloroplast is like trees and other plants at a school because it carries out photosynthesis for plants similar to how plants proved oxygen for us.