Name: _______________________                                                                          Quiz #1

Bio 092

Summer 2005

 

Multiple Choice and True/False (1 point each)

 

____  1. A(n) _______ is a substance that contains two or more elements in a fixed ratio.

 

A.     atom

B.     compound

C.     molecule

D.     macromolecule

 

____ 2.  This keeps pH steady by accepting or donating hydrogen ions as needed.

                       

A.     buffer

B.     water

C.     acid

D.     base

 

____ 3.  True or False: The addition of hydrogen to saturated fats creates hydrogenated fats.

 

 

____ 4. True or False: All steroids are harmful.

 

 

 

Short answer

 

5. Name two of the three types of chemical bonds we covered in class (2 points)

 

 

 

 

6. List the full names of the nucleotides that make up DNA (4 points)