Tissue

Tissue is a group of similar cells that work together to do one main job in the body.

• Cells in a tissue are usually alike in shape and function, so they can cooperate efficiently—like a team where everyone has the same role.
• A tissue is a step bigger than a cell but smaller than an organ. Many tissues combine to make an organ.
• Example (animals): muscle tissue is made of muscle cells that can contract together, helping you move your arms, legs, and even helping the heart beat.
• Example (plants): xylem tissue helps carry water from roots to leaves, and phloem tissue carries food made in the leaves to other parts of the plant.
• A useful way to remember it: cells are like bricks, and a tissue is like a section of wall built from similar bricks for a particular purpose.

Because tissues share the work among many similar cells, they make complex bodies stronger, faster, and more organised.