Homework Help: Biology/General

Posted by Anon on Monday, October 15, 2007 at 1:34pm.

Why do sweet and greasy foods taste so good to us?

What are some properties of DNA that make it well-suited for storage of genetic information?

Why does eating excess carbohydrates cause you to gain fat?

The Irish survived for generations by eating potatoes as their main food staple. What is the main biomolecule in potatoes that allowed them to do that and what is its primary function for the potato plant?

Biology/General - GuruBlue, Monday, October 15, 2007 at 1:49pm
We would be more than happy to help you after you have posted what you think are the best answers.
Biology/General - SraJMcGin, Monday, October 15, 2007 at 2:04pm
Thank you for using the Jiskha Homework Help Forum. Let's address each of your questions in order!

Why fatty foods taste good:

1. http://www.sciam.com/article.cfm?articleID=00095DDB-2741-1C68-B882809EC588ED9F

2. http://www.purdue.edu/UNS/html4ever/011203.Mattes.taste.html

3. http://discovermagazine.com/2006/feb/why-fat-tastes-so-good

Personal opinion: It's all what you get used to! The first time I drank fat-free milk it was like "blue water" but after a year or so I tried regular homogenized milk and it tasted "greasy!" (Same thing going from frozen yoghurt to regular ice cream!)

DNA properties:

1. http://en.wikipedia.org/wiki/Mechanical_properties_of_DNA

2. http://www.brooklyn.cuny.edu/bc/ahp/AVC/MacroInv/DNA/VCB_DNA_HP.html

3. http://www.stanford.edu/group/blocklab/DNARNA.html

Carbohydrates:

1. http://www.runningnetworkarchives.com/runwashington/tips/carbofat.html

2. http://www.annecollins.com/diet_news/carbs-make-you-fat.htm

3. (interesting blog): http://radio.weblogs.com/0107127/stories/2002/07/23/itsTheCarbsThatMakeYouFat.html

Summary: not the carbohydrates per se but the calories!

Biomolecule in potatoes:

1. (pdf file to download):
www.aist.go.jp/aist_e/research_results/publications/pamphl

2. (you can request information here): http://www.biocompare.com/itemdetails.asp?itemid=300128

4. (abstract is in English below the Spanish): http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TGT-4MSXT42-2&_user=10&_coverDate=04%2F30%2F2007&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=7b7c9e6fddafffb6e8f1bafca6651aeb
biology/general - 1, Sunday, January 20, 2013 at 10:36am
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biology/general - -1', Sunday, January 20, 2013 at 10:36am
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-1' - 1, Sunday, January 20, 2013 at 10:36am
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biology/general - 1, Sunday, January 20, 2013 at 10:36am
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