Chapter 2, Problem 4RQ

Distinguish between an element, an atom, and a molecule.

Plasma contains more sodium than chloride. How can this be if individual ions of sodium and chloride exactly balance each other out, and plasma is electrically neutral?

a. Can a mutation change a proteins tertiary structure without changing its primary structure? b. Can a mutation change a proteins primary structure without affecting its secondary structure?

Figure 3.5 What kind of sugars are these, aldose or ketose?

The pH of black coffee is 5, and that of milk of magnesia is 10. Is the coffee twice as acidic as milk of magnesia?

Name three vital properties of water in living cells.

Describe the four levels of protein structure. How do a proteins side groups influence its interactions with other substances? What happens when a protein is denatured?

In which direction would an MRI scanner move to produce sequential images of the body in the frontal plane, and in which direction would an MRI scanner move to produce sequential images of the body in the sagittal plane?

Why are hydrogen bonds and van der Waals interactions necessary for cells?