The Green Cell (City)

What is a Cell?

A cell is the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Although, there are more things inside a cell than these!

Organelle #1: Nucleus

A membrane-bound organelle that contains the cell's DNA and that has a role in processes such as growth, metabolism, and reproduction.
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The nucleus is in the middle of the cell, and is one of the most vital, if not most important, part of a cell. The nucleus can be compared to the Town Hall of a city. It helps the city grow, stay in order, and keeps information used to make decisions for the city.

Organelle #2: Mitochondria

The cell organelle that is surrounded by two membranes and that is the site of cellular respiration, which produces ATP.
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The mitochondria is similar to a power plant.

Organelle #3: Endoplasmic Reticulum

A system of membranes that is found in a cell's cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids.
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The Endoplasmic Reticulum has rough and smooth textures. The ER is like roads or a post office, because it is used as transportation throughout the cell.

Organelle #4: Ribosomes

Cell organelles composed of RNA and protein; the site of protein synthesis.
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Ribosomes are like factories or farms because they provide protein such as a factory/farm would to the people.