Thursday, January 10, 2013

Review of basic Chem & Metabolism / Biological Macromolecules (Physiology Quiz 1)

Chemical Bonds


Source





Biological Macromolecules
See if you can recorgnize these types of macromolecules by their structure (answers at the end of this little section.)

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Source: http://biology.unm.edu/ccouncil/Biology_124/Summaries/Macromol.html

Answers:
1- A carbohydrate.  Usually in rings like this (all corners of the ring represent a Carbon atom), with Oxygen and Hydrogen.
2- An amino acid/ protein.  The dead giveaway is the Nitrogen in it.  Carbs and lipids don't have Nitrogen in them.
3- A lipid/ triglyceride.  The saturated hydrocarbon tails - 3 of them - are the clue here.
4- Protein (tertiary structure).  It's all folder over on itself.
(Note: examples of nucleic acids and more examples of each kind immediately follow)


 Proteins
Source: http://sph.bu.edu/otlt/MPH-Modules/PH/PH709_A_Cellular_World/PH709_A_Cellular_World6.html
Source


Lipids





Source


Source


Carbohydrates

Monosaccharides
Source


Polysaccharides
Storage in animals: glycogen
Highly branched.  Can contain 30,000 individual glucose units! (Click on source to see on a white background)
Source



Storage in plants: Starch

Amylopectin - branched starch (Source)

Cellulose


Source

Nucleic Acids
Source
In this one, notice the deoxyribose has one fewer Oxygen's on the corner there, where it's pointing, hence the name.  That is the sugar part of the sugar-phosphate backbone.  The green parts with the 2 rings are the nucleic acids.
Source


Wednesday, January 9, 2013

Human Anatomy Study Resources

Here is a collection of study resources for students of Human Anatomy.  Nothing special, I just did some Google searches and have compiled a handy list for you.  Best wishes on your studies!

Bones & Joints
Multiple choice bony landmark practice, by placing labels on the appropriate spots on the diagram.  Explore the rest of the website for other good study helps.
http://highered.mcgraw-hill.com/sites/0072919329/student_view0/chapter7/labeling_exercises.html

Bony landmark practice, type in answers and get them checked (note this program does not add the correct parent terms such as "greater tubercle of the humerus", so remember to say/ think them to yourself to avoid bad habits!)
http://www.getbodysmart.com/ap/skeletalsystem/skeleton/menu/menu.html

Muscles
This actually has bones, joints, muscles, and more.  If you get to a view of a region of the body you can look at the bones, muscles, blood vessels, and nerves for that region with one click.
http://www.innerbody.com/htm/body.html

Some pertinent posts on Anatomy/ Physiology from this blog:

http://biogeonerd.blogspot.com/2012/10/brain.html


http://biogeonerd.blogspot.com/2012/10/neurons.html


http://biogeonerd.blogspot.com/2012/02/action-potentials-what-make-your-brain.html


Hormones:

http://biogeonerd.blogspot.com/2012/04/endocrinology-hormones.html

Wednesday, January 2, 2013

Happy 2013

I am going to indulge in a personal off-topic post to share some thoughts at the New Year.

2012 has been a really amazing year.  The huge highlight was of course how we spent our summer.
I spent my weeks in the marine paradise called Newport, Oregon, while the kids enjoyed time with grandparents.
Every weekend brought a new adventure all over the state, as I took the boys to see all the sights. We played at the Pacific Science Center in the shadow of Seattle's Space Needle, explored the human body and the bouncy-ball inventing room at OMSI in Portland, and sat where Howard Hughes once did in the cockpit of the famed Spruce Goose.  The geology geek in me swelled when we visited the beautiful fossil beds of Eastern Oregon and stumbled upon the many treasures of Newberry Volcanic Monument, where we walked around the rim of a cinder cone volcano, hiked through a lava tube cave, and climbed on basalt flows.  Later, we drove around the rim of Crater Lake and did several short hikes there, and collected volcanic rocks and sand on several beaches.  We enjoyed seeing many animals at a walk-through and drive-through "safari" and a desert animal museum, and discovered so many marine creatures at the Oregon Coast Aquarium, and Hatfield Marine Science Center where I worked. We even got to see many invertebrates and fish in the wild at nearby tidepools, the California Sea Lions that rest on a dock in Newport, and the fascinating sea birds at Yaquina Head.  We drove almost the entire length of the Oregon Coast and visited all but one lighthouse in Oregon, and also had a fun visit to Battery Point Lighthouse in Crescent City, California where we found hundreds of crabs under the wet rocks and in tide pools.  We attended a kite festival on the coast, combed dozens of beaches, and sat in the ocean.  We brought home quite the collection of crab molts, rocks, sand, shells, feathers, bones, fossils, photographs, and memories.

Back in Utah, we immediately started back to school and I immediately got really sick and struggled with various illnesses all semester.  It's a miracle I completed any classes with all the troubles we had, but I did fair and got the classes out of the way. I managed to fall into a job as a tutor and completed my first semester leading a study group for Human Physiology.  That was so fun and I'm looking forward to doing it again this upcoming semester.  I work at the Academic Tutoring Center and really enjoy that as well.  We moved into our own apartment at the end of November and enjoyed Christmas at our new place that has a fireplace! :D



Here was how I celebrated the new year...
Dec 31, 2012:
The kids and I counted down to the New Year in Chile, which was 8:00 our time.  We blew horns and banged pots (I'm sure the neighbors thought we'd lost it), made a mess with pop-out streamers, then toasted with a glass of sparkling cider.  Kids played a few games, looked at pictures from our many adventures in 2012, and went to bed.  I relaxed alone with some music, pumpkin pie with real whipped cream, and a puzzle from Dinosaur National Park.

Right before midnight I walked outside to feel the falling snow on my face and hair, and heard the muffled noises of people banging pots and pans in their homes, cars honking their horns as they drove down the icy street, and a few nearby fireworks going off, as the future became present.  I took a few photos of the snow sparkling in the lamp light, and the 5-foot-long icicles clinging to the eaves of my building.  It was beautiful and a truly glorious way to start the new year: in complete serenity.

Tuesday, November 20, 2012

Happy Anniversary!

Today is the 1 year Anniversary of Bio Geo Nerd!  Now that is an anniversary I can get excited about. :)  And, this post marks a momentous milestone....(drumroll)......

Post #100!!!

:D  Happy Dance...
So I had a rough average of 2 posts per week for a year, and it's been very fun.  Obviously I had some times that were busier than others for the blog, and times when the busy-ness of life prevented me from posting very much.  The viewership of the blog had a very slow start and has begun to expand greatly, going from 20,000 hits just a couple months ago, to now almost 45,000.

Year in Review
Here is a review of some of my favorite pictures from my favorite posts.  I had such a blast learning about these topics and then creating the posts about them.  Fond memories. :)

Giant Pacific Octopus Beak


Anapsid Skull Rock at Capitol Reef Field Station


Treetop Barbie :)


My little guy is famous for this funny little quote

Realizing the Zygomatic Arch was the human "temporal fenestra" was a cool "aha" moment for me in College Bio II






Monday, November 19, 2012

Physiology Tutoring

I love physiology.  I have been telling myself that for almost a year now. :)  It began as a positive affirmation in order to do better on the weekly quizzes and tests.  But it has also become an absolute truth.  I love learning about the human body and how it works.

Please see the following posts that are tagged as Physiology:
http://biogeonerd.blogspot.com/search/label/physiology

I love getting to tutor the subject and hope to be able to flesh out and add more Physiology posts as I have time. (Time has been very scarce this semester, so hopefully I can do this more in the near future, perhaps over Christmas break.)  Thanks for visiting!  Please comment!