By the time carbohydrates have passed through the stomach and intestines, they have been broken down into single sugars such as glucose.  At the same time fats that pass through the stomach and intestines have been broken down into fatty acids.  The image below shows various examples of fatty acids.  Briefly describe why glucose can diffuse directly into the blood and fatty acids cannot.     

The following molecule is the active ingredient in dark chocolate, known as theobromine and more commonly cocoa.  Which of the following atoms in this molecule is making an incorrect number of bonds?   

Match each molecule to its correct organic family. A. CH3CH2CH2CH2CH3 B. CH3CH2OH C. CH3NH2 D. CH3CH2SH

In the correct order, the products of Glycolysis, the Citric Acid Cycle and the Electron Transport Chain are:

Which of the following molecules represents an aldehyde? A.      B.        C.      D.     

Carbon tetrachloride, CCl4, used to be a primary component in fire extinguishers but was phased out due to toxicity upon prolonged exposure.  The chlorine atoms in the CCl4 molecule form [bonds] bonds with the carbon and each chlorine has [LP] lone pairs of electrons.  The overall molecule has a [shape] geometry.

Draw a Lewis structure for the molecule N2.  The bond between the nitrogen atoms is best described as a _________________ bond.   

Compare the atoms Potassium (K) and Bromine (Cl) help to balance charges across membranes in the cell.  For K, the ionization energy is [IA] and the electron affinity is [EA] compared to Cl.   

The enzyme HIV protease is responsible for activating proteins expressed by the Human Immunodifficiency Virus (HIV) which then attack the host immune system.  This protein has been the target of highly successful drug development in order to block HIV activity.  The image below shows a close-up of the active site of HIV protease bound to one of these drugs, showing specific intermolecular interactions.  The atoms making the interactions are labeled.  Match each interaction to its correct type.    

Name the following molecule: CH3CH2CH2OH