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Word Games: Centrosome vs. On the other hand, a centriole is a small set of microtubules arranged in a specific way. There are nine groups of microtubules. The centrioles are found in pairs and move towards the poles of the nucleus during the cell division. What is the difference between centromere, centrosome and centriole? Jahan Psyche. Jan 29, Explanation: Also, centrosomes regulate the cell division cycle. The organelle plays a role in both the interphase and mitotic phases of the cell cycle.
These organelles are important in organizing the microtubules, and in cell polarity. It is also involved in intracellular transport by organizing the microtubule array. The centriole is a structure that is comprised of microtubules that are arranged in a particular manner.
The microtubules are actually proteins that form short cylindrical structures. The microtubules form a centriole that has a length of about nm wide and nm long. A centriole is comprised of 9 microtubule sets. Each set is a triplet, in other words, it consists of 3 microtubules each. Research has shown that the microtubules arrange to form a cartwheel structure with proteins emanating out from a central component.
These proteins connect to the A microtubule of each triplet. The other two microtubules are, unlike the A tubule, not complete and do not attach to the central part but attach to the A microtubule. The C tubule is the shortest of the three microtubules so at some parts there is a doublet rather than triplet structure present. The protein SAS-6 has been found to be a molecule that acts as a precursor for the formation of centriole microtubules.
In addition, scientists have found more protein molecules that seem to play a role in generating microtubules. Studies on C. These molecules come together and organize to produce the microtubular structure seen in a centriole. Centrioles occur in some protist cells and in animal cells. They occur in pairs forming a centrosome but are also found at the bottom of cilia and flagella, where they occur as a single structure.
In the case of flagella and cilia, the centrioles are found near the surface just inside the cell membrane where they are also referred to as basal bodies. Where pairs of centrioles form a centrosome, they help form the spindle fibers during the process of cellular division.
In the case where centrioles form the basal body of a cilium or flagellum, they help to actually produce the proteins that form the structure. A centrosome is an organelle found in cells that consists of two centrioles. A centriole is a structure found in a cell that is comprised of microtubules that are arranged in a particular way.
A centrosome is of variable size but always bigger than a centriole. A centriole has dimensions that are approximately nm long and nm wide. The pericentriolar material helps form the centrosome by organizing the centrioles.
The centrosome occurs near the nucleus, and after it has copied itself, on opposite sides of the nucleus. The centriole can occur either near the nucleus or near the cell membrane. The function of the centrosome is to produce the spindle during mitosis and to help regulate intracellular transport.
The function of the centriole is to form the centrosome and to form the basal body that gives rise to cilia and flagella.
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