What is the name of a protein that polymerizes into long chains or filaments that form microtubules, hollow fibers that act as a skeletal system for living cells?
Tubulin
The correct answer is Tubulin.
It is not rigid but constantly changes, allowing for cell movement, division, and transport of substances within the cell. The three main components of the eukaryotic cytoskeleton are: Microtubules (formed by Tubulin) Microfilaments (also called Actin filaments, formed by Actin) Intermediate filaments (formed by various proteins depending on cell type, e.g., Keratin, Vimentin) Each component has distinct protein subunits, structures, and roles within the cell, collectively contributing to the cell's structural integrity and dynamic processes.
Important Questions from Cell Structure
Within the nucleus of eukaryotic cells, which of the following structures contains the tightly coiled genetic material?
Which of the following statements is/are correct?
I. Amoeba ingests its food with the help of pseudopodia.
II. Amoeba constantly changes its shape and position.
Which of the following cell organelles functions both as a passageway for intracellular transport and as a manufacturing surface?
The ribosomes are centres (sites) for.
Mitochondria are sites of _____
