97% by weight of most organism accounted for by 6 elements.
These elements are?
The high % by weight of O in most organisms is accounted for by which component?
Why is life often called a C-based phenomenon?
Think of three-or-more reasons why is it equally correct to call it a water-based phenomenon.
What are the five unique properties of water compared to similar alcohols or hydroxides?
What gives water its unique properties?
What is the molecular structure of water?
What are other examples of permanent dipoles?
What is a H-bond?
How many H-bonds can water form?
What is the energy of a H-bond?
So, now provide a chemical basis for the properties of water.
Why is water secreted as sweat?
Why is solid water less dense than liquid water?
Why is water a good solvent for polar and charged molecules?
Why do polar and charged compounds dissolve in water?
Why is water a poor solvent for non-polar compounds?
So, what are the non-covalent bonds important in biochemical systems?
Ionization of Water:
what is the pH scale?
What is the pH of these common solutions?
What is a Buffer?
What is the chemical basis for a buffer?
What are the physiologically important buffers?
Return to BICH 107 page.