Cell
The basic unit of structure and function in living things
cell theory
The theory that all living things are composed of cells and that all cells come from other cells.
Robert Hooke
An English physicist who was the first person to observe cells
Anton van Leeuwenhoek
a Dutch businessman who was the first to observe living cells in a drop of pond water with a simple microscope
Matthias Schleiden
German botanist who concluded that all plants are made of cells
Thedore Schwann (1839)
A German zooglist who introduced the idea that animals are made up of cells
Rudolf Virchow
a German physician who was the first to introduce the idea that all cells are created from other preexisting cells
cellular differentiation
Process that creates different types of specialized cells
Organ
Different kinds of tissues that function together
organ system
different organs working together
Organism
A living thing
stem cells
special cells that can differentiate into more specific types of cells
Tissue
a group of cells that work together to perform a function
Capsid
The protein shell of a virus that surrounds it genetic material
host cell
A living cell that is infected with a virus
lysogenic cycle
The process some viruses useto reproduce where the viralDNA is incorporated into thehost DNA to be replicated bythe cell.
Lyric cycle
the process that some viruses use to reproduce where the host DNA is immediately destroyed to make new viruses
viral envelope
a layer of lipids similar to a cellular membrane that surrounds the capsid of some viruses
Virus
A tiny, nonliving particle that invades and then reproduces inside a living cell.