Download Any one-celled organism that lacks a distinct cell nucleus or DNA

Prokaryotes
Any one-celled organism that
lacks a distinct cell nucleus or
DNA not organized into
chromosomes
Eukaryotes
An organism whose cells
contain a nucleus
surrounded by a membrane
Cell
The smallest unit that can
perform all the processes
necessary for life
Tissue
A group of cells that work
together to perform a
specific job.
Organ
A structure that is made up of
two or more tissues working
together to perform a specific
function
Organ System
A group of organs working
together to perform a
particular function
Structure
The arrangement of parts in an
organism. It includes the shape
and material of the part.
Function
The job the part does within a
structure.
Organism
An individual form of life that is
capable of growing and
reproducing. Organisms are
made up of one or more cells
Mitosis
A process of cell division in which the
nucleus divides to produce two new
nuclei, each having the same number
and type of chromosomes as the original
Cell Cycle
The life cycle of a
cell
Chromosome
a thread-like strand of DNA
and protein that carries the
genic material in the nucleus of
a cell
Mitosis Interphase
Chromosomes are
copied. Each
chromosome is then
two chromatids.
Mitosis Phase 1 - Prophase
Mitosis begins. The
nuclear membrane
dissolves. Chromosomes
condense into rod-like
structures.
Mitosis Phase 2 - Metaphase
The chromosomes line up
along the equator of the
cell. Homologous
chromosomes pair up.
Mitosis Phase 3 - Anaphase
The chromatids
separate and move to
opposite sides of the
cell
Mitosis Phase 4 - Telophase
A nuclear membrane forms
around each set of
chromosomes, and the
chromosomes unwind.
Mitosis is complete.
Cytokinesis
The cell pinches in two.
In cells that have a cell
wall, a cell plate forms
between the two new
cells.