Celltheory

Cell Theory

  • Cell
    1 BCE

    Cell

    Cells are the basic structures of all living organisms. Cells provide structure for the body, take in nutrients from food and carry out important functions.
  • Tissue
    1 BCE

    Tissue

    Tissues are groups of cells that have a similar structure and act together to perform a specific function. There are four different types of tissues in animals: connective, muscle, nervous, and epithelial. In plants, tissues are divided into three types: vascular, ground, and epidermal. Groups of tissues make up organs in the body such as the brain and heart.
  • Organ
    1 BCE

    Organ

    Groups of tissues make up organs in the body such as the brain and heart.