Sally had just got home from school when she began thinking about how the animal cell works. She had learned all about it in school, but couldn't understand how all the organelles functioned.
She decided to ask her dad. He said, "Think about it just like your body. All those parts inside you are working together to keep you alive, just like the cell's organelles do!"
He explained that the the nucleus of the cell is just like the brain in a person. It controls everything that happens in the cell like the brain does for a person's body.
Sally still wasn't completely understanding the cell, so her dad continued to give her examples.
He explained how the cell membrane is like the skin because it is the outermost layer of the animal cell.
"The cytoplasm in the cell is just like blood in our bodies," Her dad said, "It fills up the cell just like blood fills us up!"
Her dad asked, "Do you understand now?" Sally was starting to get it, but she still needed help with the other organelles, she asked, "I think I need more help, would you keep giving examples?" "Absolutely!" her dad responded.
"Think about the ribosomes," he went on, "they make protein for the cell which is needed to do a job. This is similar to how the pancreas makes insulin for the body which is also needed for a job."