The Building Blocks of Life

All living things are made up of cells, which are the smallest units of life. Cells come in two main types: prokaryotic (like bacteria) and eukaryotic (like plant and animal cells).

Key Parts of a Cell

• Nucleus: Contains genetic material (DNA).
• Cell Membrane: Controls what enters and exits the cell.
• Cytoplasm: Jelly-like substance where cell activities occur.
• Mitochondria: The powerhouse of the cell, producing energy.
• Chloroplasts: Found in plant cells, where photosynthesis happens.

Why Cells Matter

Cells perform vital processes such as energy conversion, reproduction, and responding to the environment. Understanding cells is essential for fields like medicine, genetics, and environmental science.

Fun Fact

Human bodies have trillions of cells, and every second, millions are replaced!