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CELL PARTS. Parts used for Cell Structure and Cell Division (Page 84). CYTOSKELETON. STRUCTURE Network of thin tubes and filaments (Made of Protein) that crisscrosses the cytosol Made up of Microfilaments, Microtubules and Intermediate Filaments . FUNCTION

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cell parts

CELL PARTS

Parts used for Cell Structure and Cell Division (Page 84)

cytoskeleton located in cytosol of the cytoplasm
STRUCTURE

Network of thin tubes and filaments (Made of Protein) that crisscrosses the cytosol

Made up of Microfilaments, Microtubules and Intermediate Filaments

FUNCTION

Gives shape to the cell(like the inside of a tent)

Plays important roles in intracellular transport Act as internal tracks(for example:the movement of vesicles and organelles)

Cellular division.

CYTOSKELETONLocated in cytosol of the cytoplasm
microtubules
STRUCTURE

Hollow tubes made of coiled tubulin (a type of protein)

Two subunits:

Alpha and Beta Tubulin

Radiate outward from the centrosome near the nucleus

FUNCTION

Chromosome Movement(Cell Division)

Hold organelles in place and assists in organelle movement

Cell Motility – Make up Cilia and Flagella

Maintains cell’s shape

MICROTUBULES
microfilaments
Structure

Two strands of intertwined actin protein

Looks like a rope

Function

Maintains cell’s shape and movement of cytoplasm

Cell Motility (ex: White blood Cells)

Cell Division

**Muscle cell Contraction

Microfilaments
intermediate filaments
Structure

Protein fibers coiled into cables

Function

Rods that anchor nucleus and other organelles in their place

Maintains cell shape and Nucleus Shape

Intermediate Filaments
centrioles and centrosomes
Centrosome Structure

Contain two centrioles

Centrosome Function

Microtubule Organizing Center

Contains two centrioles in the animal cell

Centrioles Structure

Two short cylinders of microtubules

Centrioles Function

Act as anchors that microtubules attach to during cell division to move chromosomes.

Centrioles and Centrosomes
cilia and flagella13
Structure:

Flagella- Made of microtubules. One or two long strand that extends from the cell Membrane

Cilia- Many short hairlike structures that extend from the cell membrane

Function

Movement of the cell

Aids in movement of fluids across the cell membrane

CILIA AND FLAGELLA