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Wednesday 2/23
Please take out a pencil
 Colored Pencils
 Warm Up:
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
With the person sitting next to you,
talk about the steps of the cell cycle.
Be able to name the stages of the
cells life and steps of mitosis.
Mitosis Cell
Structure Review
Instructions
Each group will get 3 vocabulary
words.
 Each person in the group will chose 1
of the words and draw a
picture/pictures representing the word
as well as write a definition that is
easy to understand.
 Pictures must take up the whole box
and be colored and labeled if needed.

Eukaryotic Cells
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Have a nucleus
Found in multi-cellular organisms
& some unicellular organisms
Prokaryotic Cells
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Do not have a nucleus
Found in bacteria
Cell Membrane
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Thin, flexible layer
Separates the cell from its surrounding
environment
Controls movement of materials into and out of
the cell
Helps maintain the cell’s internal environment
Cytoplasm
•
Thick, jelly-like
substance
contained within
the cell membrane
Nucleus
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Control center of the cell
Contains the genetic
material (chromatin) the
cell needs to reproduce
and function.
Is surrounded by the
nuclear membrane
Nuclear Membrane
•
membrane that separates
the nucleus from the
cytoplasm.
Nucleolus
Found inside the nucleus
 Helps make RNA
 If it malfunctions, it can cause many
human diseases
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DNA
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The genetic material found in all living cells.
Contains the information needed for an
organism to grow, maintain itself, and
reproduce
Stands for deoxyribonucleic acid
Chromatin
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Chromosomes are not always visible.
They usually sit around uncoiled and as
loose strands called chromatin.
Chromosome
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Worm-like / rodlike structures
formed from
chromatin during
cell reproduction.
They become
distinct during the
reproductive part
of the cell cycle as
the cell divides.
Composed of DNA
Sister Chromatids
Pairs of chromosomes are called
Sister Chromatids
 Structures called a Centromere hold
the sister chromatids together

Centrioles - Organizing
Chromosomes
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Every animal-like cell has two small
organelles called centrioles. They are
there to help the cell when it comes time
to divide.
They are put to work in both the process
of mitosis and the process of meiosis and
move to opposite sides of the nucleus
during cell division
You will usually find them near
the nucleus but they cannot be seen when
the cell is not dividing.
Spindle Fibers
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Spindle fibers form a protein strand that
divides the chromosomes in a cell during cell
division.
The spindle is necessary to equally divide the
chromosomes in a parental cell into two
daughter cells during both types of nuclear
division: mitosis and meiosis.
Aster & Centrosome
An aster is a cellular structure shaped
like a star, formed around
each centrosome during mitosis in
an animal cell
 Centrosome is where the centrioles
are organized
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