Lecture notes - Cell And Molecular Biology (Cilia and Mitochondria)- Using Becker's World of the Cell, Global Edition
9 views 0 purchase
Course
Cell And Molecular Biology
Institution
Manchester Metropolitan University (MMU)
Book
Becker\'s World of the Cell, Global Edition
If you're studying a life science (e.g. - biomed, bioscience, physiology, sports science, sports physiology etc), then this detailed set of lecture notes on cilia and mitochondria will help you smash your first set of exams on cell/molecular biology!
You'll need a good knowledge of this you'll ...
Test Bank for Becker's World of the Cell 10th edition by Jeff Hardin & James Lodolce Chapters 1-26 , ISBN: 9780135832011 |All Chapters Verified| Guide A+
Test Bank - Becker's World of the Cell, 10th Edition by Jeff Hardin, All Chapter 1-26 | Complete Guide A+
Lecture notes - Cell And Molecular Biology (DNA - Genes) - Using Becker's World of the Cell, Global Edition
All for this textbook (9)
Written for
Manchester Metropolitan University (MMU)
Unknown
Cell And Molecular Biology
All documents for this subject (17)
Seller
Follow
jaz2
Content preview
Cilia, Flagella and Mitochondria 18/11/19
Microtubules – Hollow, large – α and β Tubulin = protein subunits
- Cylindrical – β and α = bind together
- Dynamic – grow and shrink – responds to cellular signals
- Constant polymerisation/depolymerisation – adding/removing tubulin dimers (chem
compound – 2 similar subunits) – GTP hydrolysis
- Green filaments = microtubules
- Originate from ‘microtubule organisation centre’
Structure depends on required function – e.g. – centrioles need lots of strength so 3, but flagella need
to move – less strength needed
Grow out from centrosome – (near nucleus) – anchored in place with triplet
Have a role in cell division
- Partition of replicated chromosomes
- Assembles and disassembles microtubule structure – forms mitotic spindle
- Centromere changes shape/structure – pulls chromatids
- 9 triples (27) microtubules – surrounded by protein matrix
- 9+0 = no tubules in centre
- Centriole pairs form mitotic spindle – so equal division of genetic material
Mitotic spindle controls chromosome movement
- 2x centrosomes (replication) – opposite poles of cell
- Microtubules grow out of them
Centrosome at prometaphase = Aster
- Tubules = down to midline and attached to kinetochore – attaches to chromatin
- Microtubules shorten (anaphase) – depolymerise at kinetochore ends – sister chromatids
more to opposite ends of cell
- Breaks down of microtubules = pulling motion
- Kinetochore breaks down microtubules – releases tubulin subunits
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 or Stuvia-credit 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 jaz2. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.09. You're not tied to anything after your purchase.
