Chapter 2: Essential Chemistry for Biology
 
Pre-Test
 
 Pre-Test   Activity Quiz   Chapter Quiz 

1 .       What is the primary reason for the fluoridation of water? 



2 .       What is the basic unit of life? 



3 .       Four elements combine to make about 96% of the weight of the human body. Which of the following elements is NOT one of the four? 



4 .       The simplest unit of matter that still retains the properties of an element is a(n) _____. 



5 .       Silicon has an atomic number of 14 and a mass number of 28. How many neutrons are found in silicon? 



6 .       Which of these is a type of chemical bond that involves the sharing of electrons? 



7 .       In the reaction: glucose + fructose ( sucrose + water _____ is a reactant and _____ is a product 



8 .       What type of bond is found joining neighboring water molecules? 



9 .       Which of these is an example of a solution? 



10 .       A substance that resists changes in pH is referred to as a _____. 



Answer choices in this exercise are randomized and will appear in a different order each time the page is loaded.





Copyright © 1995-2011 by Pearson Education