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Journey Through the Cell Factory
Transcript of Journey Through the Cell Factory
The Cell Factory Cell Plasma Membrane - regulates what enters and leaves the cell
- made of phospholipid billayer:
-hydrophilic (water-loving) head and hyrdrophobic (water-fearing) tail that line up in double layer so heads on outside and tails on inside
- membrane contains proteins that allow materials to enter and leave the cell and control communication!
The "Gates" The Nucleus "Control Center" - Controls ALL activity that goes on in the cell
- regulates what proteins are made
- contains DNA (the "blueprints")
- DNA holds the genetic makeup of life!
- contains an organelle called the nucleolus that manufactures ribosomes
Mitochondria "Power House" - takes oxygen and nutrients and
turns into energy through the
process of cellular respiration
- contain their own DNA and ribosomes
therefore can manufacture proteins
- A cell may have hundreds or thousands
of mitochondria Endoplasmic Reticulum "The Conveyor Belt" - provides pathway from nuclear membrane to plasma membrane
- Rough ER: contains ribosomes and
is where proteins are made
- Smooth ER: no ribosomes
and produces steroids Ribosomes "Factory Workers" - some float around cytoplasm and
some attach to ER
- make proteins that will be used inside
the cell and exported outside the cell
- consist of two subunits that string
amino acids together to make different
proteins Golgi Apparatus "Packaging Center" - inspect the proteins for flaws and package them for export
- when the protein is ready for export, a piece of the Golgi
pinches off and forms a
vesicle that carries the
protein through the
cytoplasm to be exported
outside of the cell Cytoplasm "Factory Floor" - Jello-like material that
holds all of the organelles
in place Cytoskeleton "Support Beams" - maintains cell shape and
move cell membrane Lysosomes "Security and Maintenance" - absorb and use enzymes
to digest foreign materials
taken into the cell
- responsible for "cell-suicide"
in which the entire cell is
destroyed if needed
- without these, cells would build
up too much "junk" - Cells contain many parts called organelles that each have a specific function
- Each organelle is designated a task
- All of these work together to keep the cell alive and working to produce proteins that will be used within and outside of the cell
- The cell is set up very similar to a factory