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6) Metabolism refers to an organism’s ability to  
 A) 

Reproduce 

B) Use energy 

C) Pass on genetic information 

D) Respond to the environment 

E) All of the above 

7) A cell that lacks membranous organelles is a(n): 
          A) Member of the Plant kingdom 
 

B) Animal cell 

C) Prokaryotic cell 

D) A protist 

E) Eukaryotic cell 

 
8) An atom has 5 electrons in its outer orbit.  To complete its outer orbit it needs  
     __ electrons. 
 A) 

5 

 B) 

3 

 C) 

2 

 D) 

1 

 E) 

8 

 
9) Electrons 
 

A) Located closest to the nucleus have the most energy 

B) Along with neutrons, are located in the nucleus 

C) Are attracted to the negatively charged nucleus 

D) Are negatively charged 

E) Have an amu = 1 

 
10) Water can absorb and store a large amount of heat while increasing only a few  
       degrees in temperature.  Why? 
          A) The heat must first be used to break the hydrogen bonds rather than  

raise the temperature. 
 

B) The heat must first be used to break the ionic bonds rather than raise    

the temperature 
 

C) The heat must first be used to break the covalent bonds rather than  

                raise the temperature 
 

D) An increase in temperature causes an increase in the adhesion of water 

E) An increase in temperature causes an increase in the cohesion of water 

 
11) Milk of magnesia, which had a pH of 10, is often used to treat a stomach upset. 
     Milk of magnesia ___? 
          A) Is a base 
 

B) Is hydrophobic 

C) Is a salt 

D) Is an acid 

E) Has the same pH as stomach acid