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THE HUMAN CELL - Coggle Diagram
THE HUMAN CELL
NUCLEUS
The nucleus contains the majority of the cell's DNA, this sends out messaes to tell cell to grow, divide or die.
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RIBOSOME
Ribosomes are made of proteins and ribonucleic acid (abbreviated as RNA), in almost equal amounts.
A ribosome, formed from two subunits locking together, functions to..
1. Translate encoded information from the cell nucleus provided by messenger ribonucleic acid (mRNA)
- Link together amino acids selected and collected from the cytoplasm by transfer ribonucleic acid (tRNA).
- Export the polypeptide produced to the cytoplasm where it will form a functional protein.
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CELL MEMBRANE
The cell membrane, has two functions.
Second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.
First, to be a barrier keeping the constituents of the cell in and unwanted substances out
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NUCLEOLUS
The nucleolus is a region of the cell nucleus that is responsible for the production and assembly of ribosomes in cells.
MITOCHONDRIA
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Have a number of other jobs, including calcium storage and role in cell death
GOLGI APPARATUS
Once molecules have been processed by the ER, they travel to the Golgi apparatus,
It is responsible for packaging proteins into vesicles prior to secretion and therefore plays a key role in the secretory pathway.
CYTOSKELETON
Helps in cell signaling through its involvement in the uptake of material from outside the cell and is involved in moving materials around within the cell.
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LYSOSOME AND PEROXISOMES
Are essentially bags of enzymes. Lysosomes contains enzymes that break down large molecules and peroxisomes contain enzymes that destory toxic materials.
CYTOPLASM
Cytoplasm refers to the fluid that fills the cell, which includes the cytosol along with filaments, proteins, ions and macromolecular structures as well as the organelles suspended in the cytosol.
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