Centrosomes Flashcards
What is the structure of a centrosome?
It is made up of two centrioles (a mother and daughter centriole) positioned 90° from each other, linked by interconnecting fibers.
What is the role of the centrioles within a centrosome?
Each centriole is made up of a cylindrical array of microtubules, essential for maintaining structural integrity and facilitating cell division.
How does the centrosome function during cell division?
It duplicates before the S-phase to organize the mitotic spindle during cell division.
What role do centrosomes play during interphase?
They organize microtubules that aid in intracellular trafficking, cell adhesion, and polarity.
What do centrosomes contain in post-mitotic cells?
A mother centriole and a daughter centriole.
Where are centrosomes located?
They are located close to the nucleus in the cytoplasm of animal cells.
Do plants and fungi have centrosomes?
No, they do not have centrosomes or centrioles.
What is one function of centrosomes in cell division?
They help maintain the correct chromosome number and organize microtubules during mitosis for even distribution to each daughter cell.
How do centrosomes aid in changes to the cell membrane?
They initiate changes in cell membrane shape through phagocytosis and facilitate shape changes in animal cells.
What other role do centrosomes have regarding microtubules?
They regulate the movement of microtubules and cytoskeletal structures.
