Presentation on theme: " A cell is the basic unit of life. The development and enhancement of microscopes made the observation and description of microscopic organisms and."— Presentation transcript:
Robert Hooke- observed that cork has small chambers which he called “cells”. Anton van Leeuwenheok- helped improved the first microscope Matthais Schleiden- all plants are made up of cells. Theodor Schwann- all animals are made up of cells. Rudolph Virchow- discovered that all cells come from pre-existing cells.
Basic unit of life. Cell theory All living things are composed of cells Cells are the basic units of structure and function in living things New cells are produced from existing cells
Prokaryotes Do not contain a nuclei Smaller and simpler than eukaryotes Do contain genetic material Unicellular only Example: bacteria Eukaryotes Contain a nucleus, which contains their genetic material Larger and more complex than prokaryotes Unicellular and multicellular Examples: plants, animals, fungi, and protists