The cytoskeleton moves organelles around in a cell, gives the cell shape, helps the cell to move and aids the cell during cell division. The cytoskeleton is made up of protein fibers.
Animal cells do not have cell walls like plant cells do, so they need some kind of structure to keep their shape. This shape formation is accomplished by the cytoskeleton. Many eukaryotic cells contain three types of cytoskeletal structures: microtubules, intermediate filaments and microfilaments.
The cytoskeleton also moves elements around in the cell. During cell division, cytoskeleton components called microtubules pull the chromosomes to opposite ends of the cell so that they can be separated in the daughter cells. Both microtubules and microfilaments move structures called organelles around the cytoplasm. When the cell engulfs something from outside the cell, microtubules and microfilaments transport vesicles formed near the cell membrane toward the center of the cell. Vesicles also play important parts in the packaging plant of the cell, the Golgi bodies, and the transport system of the cell, the endoplasmic reticulum.
Cells move by way of cytoskeleton components. Single-celled organisms such as the paramecium and the Euglena move by way of cilia and flagella. Both cilia and flagella are made of cytoskeletal parts. The amoeba's movement is also governed by cytoskeletal structures.Learn More
A cell spends most of its life in the interphase stage where it is able to grow, create DNA and obtain nutrients in preparation for cell division. Interphase is not a part of meiosis or mitosis, but rather a stage that lets the cell perform required functions for reproduction.Full Answer >
During cell division, a cell duplicates its own DNA to create two identical cells. The process of cell division, also called mitosis, occurs in five stages: prophase, metaphase, anaphase, telophase and interphase.Full Answer >
Centrioles are tiny cylindrical tubes found in animal cells, and their job is to help organize the structure of microtubules during cell division. Centrioles are located near the cell’s nucleus and are arranged in such a way that they form a “9+3” pattern.Full Answer >
During cell division, a cell divides into two identical daughter cells. This process, called mitosis, has four stages: prophase, metaphase, anaphase and telophase.Full Answer >