Cell Theory

Cell Theory is a fundamental concept in biology that states: 1) All living things are made of cells, 2) Cells are the basic unit of structure and function in living organisms, 3) All cells come from pre-existing cells.

Virchow proposed that all cells come from other cells.

A cell is classified as the basic unit of structure and function of all living organisms.

Hooke was the first scientist to identify and name cells.

Schwann concluded that animals and all living things are made of cells.

The basic unit of structure and function of organisms is the cell.

Leeuwenhoek was one of the first to observe living cells using a microscope.

The cell membrane controls what enters and exits the cell, maintaining homeostasis.

Prokaryotic cells are simple, single-celled organisms without a nucleus, such as bacteria.

Eukaryotic cells are complex cells that contain a nucleus and organelles, found in plants, animals, and fungi.