In Vitro Fertilization

Here is a link for something on in vitro fertilization. Nothing much in terms of animations but the explanation is clear.

http://www.abc.net.au/science/lcs/ivf.htm

The Menstrual Cycle

Couldn't believe they actually have animations on the menstrual cycle. I found this one to be very clear and helpful. So AL608, this one's for you. :)

http://msnbcmedia.msn.com/i/msnbc/Components/Interactives/Health/WomensHealth/zFlashAssets/menstrual_cycle_dw2%5B1%5D.swf

Trans fat

Photo taken from: http://stanford.wellsphere.com/healthy-eating-article/disorders-of-lipid-metabolism-trans-fat-facts/8066

Someone asked me what is the difference between trans fat and unsaturated fat. To answer, I decided to post up some links here so everyone can know.

First of all, we will have to remember what we learnt about unsaturated fatty acids. They have double bonds and those double bonds can cause kinks in the molecule. Now the structure of the trans fat is related to your unsaturated fatty acid. However, they don't have kinks. The following website gives us the idea:
http://www.natural-health-information-centre.com/trans-fats.html

Of course, any reference to food related molecules would not be complete without referring to the FDA website. You can find other relevant information about trans fat here:
http://www.fda.gov/Food/LabelingNutrition/ConsumerInformation/ucm109832.htm

Pregnancy Test Kit

Here's a link to an animation that I used in class to show the principle behind a pregnancy test kit as an application of Biotechnology.

http://www.sumanasinc.com/webcontent/animations/content/pregtest.html

Collagen Tutorial

I find the tutorial at the link below very helpful to understand the structure of collagen as a fibrous protein. We can thank Kathleen, Jingyi and E-man for it. I would like to congratulate both groups (Jean, Ying Jee and Adelyn too) for an excellent first effort. Looking forward to the next two groups' presentations:
Group 3 - Jane, Indra and Nigel
Group 4 - Soo Qing, Santhana and Kelly

http://www.messiah.edu/departments/chemistry/molscilab/Jmol/collagen/chapter1.htm

Macromolecules

For the A Level 609 students, I've included the link for the animation we used in class today. This link includes animations for lipids, proteins and nucleic acids as well. I trust this will help you understand especially how the monomers come together to form a macromolecule.

http://bcs.whfreeman.com/thelifewire/content/chp03/0302002.html

Trip to the National Science Centre

Here are the group pictures from the trip as promised. I'm still waiting for more journals to come in. So, if you see the others on these pictures, do remind them that they owe Ms Hema and me the journal.