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Blood is composed of red blood cells, white blood cells and platelets that are suspended in a fluid extercellular matrix called plasma. 
 

The part of an ATP molecule that holds the energy used in metabolism is  


Membranes lining body cavities that lack openings to the outside are called  

Which of the following is NOT true about the class sessions?

The attraction of the positive hydrogen end of a polar molecule to the negative nitrogen or oxygen end of another polar molecule is called a(an) 

Homeostasis refers to  

Which of the following cellular processes requires the greatest expenditure of cellular energy?  


A protein that is altered by exposure to certain chemicals, heat, extremes of pH, electricity, or radiation, is said to be 

Requirements of humans do not include  

Blowing the nose improperly may cause an infection in the auditory tube to spread to the