Lecture notes
Eukaryotic Cilia and Flagella AND Cytoplasmic Membranes and Mitochondria
- Institution
- Manchester Metropolitan University (MMU)
Lecture notes on eukaryotic cilia and flagella AND cytoplasmic membranes and mitochondria
[Show more]
Content preview
Cilia and FlagellaMicrotubule Structure
- Alpha tubulin (purple)
- Beta tubulin (blue)
- Thirteen pro-filaments, comprised of tubulin dimers,
arrange to form cylindrical microtubule
- Dynamic process of growth & shrinkage
- Mediated by GTP hydrolysis
Microtubule structure:
- Alpha tubulin (purple)
- Beta tubulin (blue)
- Thirteen pro-filaments, comprised of tubulin dimers,
arrange to form cylindrical microtubule
- Dynamic process of growth and shrinkage
Microtubule organisation:The big green lines are
microtubules, which originate from the MTOC.
Microtubules can have three structures:
1. O singlets in cytoplasm & mitotic spindles
2. OO doublets in cilia & flagella
3. OOO triplets in centrioles & basal bodies
, Centrioles and the Centrosome
- In many cells, microtubules grow out from a centrosome near the nucleus
- The centrosome is a “microtubule- organizing center”
- In animal cells, the centrosome has a pair of centrioles, each with nine triplets of
microtubules arranged in a ring
- Do not confuse centromere with centrosome: the centromere is a region of the
chromosome, while the centrosome is a microtubule-organizing centre.
Microtubules – role in cell cycle
- Mitosis – partition of replicated chromosomes
- Involves the assembly and disassembly of a key microtubule structure – mitotic
apparatus or mitotic spindle
Microtubule organisation:
The big green lines are microtubules, which all originate from the MTOC.
Cell cycle:
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller polinalobacheva. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now