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Human Physiology, 7/e
Stuart I Fox, Pierce College
Chemical Composition of the Body

Critical Thinking Exercises

Please answer all questions



1

What good does it do somebody to take sodium bicarbonate for heartburn?
2

If the pH of orange juice is 4, how many more hydrogen atoms are released in the juice compared to coffee (pH 5)?
3

Vitamin A (i.e. retinol) consists primarily of a long chain of -CH2- groups. If you are given only this much information, what will vitamin A dissolve in more easily: oil or water?
4

If you were to use an organic chemical as a detergent to remove grease stains on your shirt (caused by a moment of carelessness with those French fries), which kind would you use and why?








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