Cell Theory and Scientists

Hooke

Was the first to see cells and name them "cells"

Leeuwenhoek

Was the first to see living cells

Schleiden

said that all plants are made of cells

Schwann

Said that all animals are made of cells

Virchow

Said that all cells come from other cells

Cell Theory

1) All organisms are made of cells, 2) the cell is the basic unit of life, 3) all cells come from other cells

Prokaryotic cells

Smaller cells without a nucleus and organelles. Example: bacteria

Eukaryotic cells

Larger cells with a nucleus and organelles. Example: Plants, animals, and humans

Traits of all cells

Cell membrane, DNA, Ribosomes, cytoplasm

Theory of endosymbiosis

This theory states that cell organelles, like mitochondria, were once tiny, free-living prokaryotic organisms that took up permanent residence inside larger prokaryotic organisms forming eukaryotic cells

DNA

Genetic code that controls our traits

Cytoplasm

fluid that fills the cell

Ribosomes

organelle that makes proteins

Cell membrane

Controls what enters and leaves the cell