Question

Define cell. Support your answer with a well
labelled diagram.

Answer 1

Answer:

• Definition of Cell :

Cell is a small structure which is the basic unit of a living organism.

The cell is the fundamental organisational unit of life.

• Cell ; where it is derived from?

Cell is a Latin word that means a little room.

• Structural organization of a cell :

Cell is composed of :

• Plasma membrane
• nucleus
• cytoplasm
• cell wall*
• Cell organelles

*Cell wall is only present in plants only. It is because cell wall provide structural strength to plants.

• Discovery of cell :

Robert Hooke 1st discovered cells in 1665 with his primitive microscope.

• Incident :

While observing a thin section of cork, he observe the thin section of compartments that resembled the structure of a honeycomb. And he termed this small compartments as Cells.