A substance that minimizes changes in the concentrations of H+ and OH- in a solution is called a ______________.

Numerical answer.  Carbon has a total of 6 electrons.  How many bonds does Carbon typically make?

Different structural isomers have the same molecular formula and the same biological function.

Polyunsaturated fats tend to have many bends or kinks in their molecular structure.

Numerical answer.  A newly discovered element has an atomic number of 16 and an atomic mass of 33.  How many neutrons are in each atom of this element?

Hemoglobin is a protein that has a quaternary structure because it is composed of four subunits, but not all proteins have quaternary structure.  

Numerical answer.  How many electrons can the first shell hold?

Proteins have many functions.  Discuss an example of a protein function, naming a specific protein with this function, and explain why this protein is important to an organism. 

Which of the following are NOT found in both RNA and DNA?

Anabolic reactions convert small molecules into larger ones.