The Animal Cell
- The cell membrane: it regulates what enters and leaves the cell it also provides protection and support. it is also selectively permeable meaning it choose what enters or leaves the cells.
The cell membrane is just like the gates to enter a city, you have to have certain things to be able to enter that city and also the other gates for leaving the city prevents just anyone from leaving the city and just like the cell membrane the city gates also serves as a protection of the city.
- Nucleus: it is a large membrane that contains the cells genetic material in the form of DNA, it controls many of the cells activities.
Just like the nucleus in a city the city hall is the most important place people go to when they need information and the city hall also provides information for the people.
- Nucleolus: This is where the assembly of ribosomes begin.
The nucleolus in a city would be the mayors office where all the instructions needed to do something would have to be given before anything is done.
- Ribosomes: they produce proteins by following coded instructions from the nucleus, each ribosome is like a small machine in a factory.
just like the ribosomes, in a city companies and factories produce goods for the people based on what the mayors finds that the people lack.
- Golgi apparatus: Customizes protein needed to perform their specific job, it sorts and package proteins for the cells.
Just like the Golgi apparatus, in a city the post office packages the product and send it to various places.
- endoplasmic reticulum: it modifies protein that comes from the attached ribosomes.
the highway in a city act likes the Endoplasmic reticulum.
- Vacuole: stores excess materials such as salt, water, carbohydrates and proteins.
in a city there has to be a storage house just like a vacuole in a cell.
- lysosome: small organelles filled with enzymes to destroy dead materials.
in a city the clean up crew acts like the lysomes in a cell by cleaning up unwanted waste
- Mitochondria: organelles that convert the chemical energy stored in food into compounds that are more convenient for the cells to use.
in a cell the mitochondria serves as a power house in a city the power house is the electrical company.