What is a Cell? - Life’s Building Blocks

Cells are the fundamental units of life, visible only under a microscope. Both animal and plant cells share key features like the cell membrane, cytoplasm, nucleus, ribosomes, and mitochondria. Animal cells have a membrane that controls substance movement, while plant cells have additional structures like a cell wall, chloroplasts, and a vacuole. These structures enable plants to harness light energy and maintain structural integrity. The diversity of life stems from these cellular building blocks, highlighting the cell's crucial role in life.

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