Free Ribosome
All Cells (80S eukaryotic; 70S prokaryotic)
A floating particle of RNA and protein that reads genetic messages and assembles the cell's proteins.
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Rp 2.400.000
Rp 4.900.000
Animal Cells (absent in most higher plants)
Centriole
Geometry of division.
A precise cylinder of microtubule triplets — the organiser of the cell's internal geometry.
Rp 3.600.000
A note
The campaign imagery is a fictional luxury concept. Toggle to Scientific X-Ray for the labelled biological illustration.
Structure
Microtubule-organising centre generally located near the nucleus in animal cells. A typical centrosome contains two cylindrical centrioles arranged approximately perpendicular to each other and surrounded by pericentriolar material. Each centriole consists of nine sets of microtubule triplets arranged in a ring.
Function
Organises and nucleates microtubules within the cell. During cell division, duplicated centrosomes move towards opposite poles and organise the microtubules of the mitotic spindle, which is involved in chromosome segregation. Centrioles can also give rise to basal bodies that organise cilia and flagella.
Where Found
Most animal cells and some other eukaryotes. Typical centrosomes containing centrioles are absent from most higher plant cells.
Why It Matters
Centrosomes help organise the microtubule network and form the mitotic spindle, allowing chromosomes to be accurately distributed to daughter cells during cell division. They also contribute to the spatial organisation of cellular structures.
Structure → Function
Its cylindrical ninefold arrangement provides a framework for organising the microtubules of cilia and flagella.
Pairings
Rp 1.900.000
Microtubule
Plant & Animal Cells
A hollow tube of tubulin — a structural track for transport and the scaffold of movement.
Cytoskeleton
Plant & Animal Cells
A dynamic lattice of filaments that shapes the cell, moves its contents and pulls it apart.