Synergy What is an Organism? (Topic C)
Stem cells
Cells that are undifferentiated
Multicellular
Describes an organism made of many cells
Unicellular
Describes organisms formed of only one cell
biochemistry
study of chemistry in living organisms
kingdom
the largest group in the Linnaean system.
mitosis
the specific part of the cell cycle where the cell divides to make two new cells which are identical
Classification
Sorting into groups
Evolutionary tree
A method used to show how closely related organisms are.
Three- domain system
A modern model of classification based on differences between organisms
Chromosomes
A structure containing one molecule of DNA
Embryo
A very young multicellular organism formed by fertilisation
Eukaryota
All organisms with a nucleus, like us, plants, fungi and protists
Differentiation
The process of becoming a specialised cell
Cell cycle
The series of stages during which cells divide to make new cells
Archaea
Unicellular, like bacteria, but biochemically very different. These organisms often live in extreme environments
Bacteria
a prokaryotic organism