Category Archives: Enzymes
In tomorrow’s class we’ll be reviewing our Making ATP unit (enzymes, cell respiration, photosynthesis and the greenhouse effect) with a couple of concept mapping activities. The first, cell respiration core, is made using the really useful free concept mapping tool from IHMC CMap tools. This is a freeware package for most computing platforms – very easy to use and might be a help in your revision!
In the second activity, build your own concept map making as many annotated connections between concepts as you can. Surrounding this, add and annotate the relevant graphs and diagrams.
Covering the core and AHL/ SL Option C content, here is a rundown of enzymes, from active sites to end-product inhibition. Again, there are lots of animation resources out there, many of which are used in the presentation – click on the shadowed images to go there.
Check out this article on the potential use of an enzyme in second-generation biofuels.
What is an enzyme? from Northland (the best one – including inhibitors, pathways and feedback inhibition)
How enzymes work from McGraw Hill
Enzyme basics from KScience.co.uk
A full collection of savable enzyme animations from Husam Medical
And John Giannini’s Enzyme collection is nice and clear.
Enzyme activity and kinetics
Enzyme kinetics from Wiley Interscience
Protein denaturation from McGraw Hill
Complete tutorial from Wiley Interscience
What is an enzyme? from Northland
Feedback (end product) inhibition from McGraw Hill
And here’s a quick run down on YouTube:
This is a re-post for the class of 2009 to revise and the 2010 group to catch on the first time… As always, click on the shadowed images for a link to an animation, or visit the links posted below.
Core (for everyone):
Additional Higher Level:
There are many decent Flash animations and the like on the internet, but the majority cannot be embedded. Below this YouTube video, there are some direct links to resources, some of which can be easily saved.
Learn.Genetics @ Utah
Transcribe and Translate (good, basic, interactive)
How do fireflies glow? (puts it in context)
University of Nebraska:
Protein Synthesis overview (Good enough for SL)
Transcription Details (fits DP Bio HL very well)
Translation Details (fits DP Bio HL very well)
John Kyrk: (visit the parent site at www.johnkyrk.com – excellent)
Transcription (fits DP Bio HL very well)
Translation (fits DP Bio HL very well)
St. Olaf College
Transcription (clear and simple)
Translation (clear and simple)
EDIT: Two more animations (from mrhardy’s wikispace, original source unknown)
RNA Splicing tutorial (HL only)
Translation with a genetic code dictionary (shows position in the ribosome)
Some more in-depth animations (newly added):
Translation from Wiley Interscience
Translation from LSU Medschool
Translation from The Chinese University in Hong Kong
Protein targeting from Rockefeller University
Download it here: digestionfhp.ppt
Let’s start with the basics:
Simple Digestion animation by kitses.com
And don’t forget the excellent review materials at Click4Biology.
Fetal pig digestive system virtual dissection from Whitman College
Control of digestive juice secretion:
Gastric acid production by parietal cells (advanced – look at ‘normal’ only) – John Hopkins
Another Gastric acid animation (over-detailed) PPIKnow Pharmacology website
Digestion of lipids:
Good animation from Wiley.com
Control of bile secretion (advanced) from ZeroBio.com
I’m still looking for animations for the other subtopics. If you find any, let me know!
Part 3 of the revision guide for 2009 session IB Diploma Biology is here:
To the right of this page there are also new updates specifically aimed at IBDP Bio – separate pages for each topic in the syllabus. I’ll try to get these as complete as possible as soon as possible, but things might be a bit quiet round here in the run-up to the exams.
If you dowload the document, let me know how you get on.
Click here for a decent animation of the process of cellular respiration.