·         Question 1

0 out of 2.5 points    

Oxygen has an atomic number of 8. This means that an oxygen atom has    

 

 

 

     

·         Question 2

2.5 out of 2.5 points    

The bond in table salt (NaCl) is    

 

 

 

     

·         Question 3

2.5 out of 2.5 points

 

 

 

 

 

 

 

 

 

 

 

·         Question 4

2.5 out of 2.5 points    

Hydrophobic molecules are ____ water.    

 

 

 

     

·         Question 5

2.5 out of 2.5 points    

A water molecule is polar because    

 

 

 

     

·         Question 6

2.5 out of 2.5 points    

What accounts for carbon’s importance to life?    

 

 

 

     

·         Question 7

2.5 out of 2.5 points    

Elephants are large animals because they    

 

 

 

     

·         Question 8

2.5 out of 2.5 points    

Most of the active functions of plasma membranes are carried out by    

 

 

 

     

·         Question 9

2.5 out of 2.5 points    

Which of the following cell features is absent in a bacterial cell?    

 

 

 

     

·         Question 10

2.5 out of 2.5 points    

The following structures are found in all eukaryotic cells EXCEPT    

 

 

 

     

·         Question 11

2.5 out of 2.5 points    

What is the function of ribosomes?    

 

 

 

     

·         Question 12

2.5 out of 2.5 points    

Which of the following are primarily structures for the packaging of cellular secretions for export from the cell?    

 

 

 

     

 

 

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