Regular Questions


1.  A scientist hypothesizes that drug X will prevent hair loss.  She designs an experiment giving
     mice in group 1 a normal diet without drug X and mice in group 2 a normal diet with drug X.
     Which group is the control group?     a) group 1        b) group 2        c) there is no control group


2.  Suppose that you had 5 bacterial cells, which of the following would you pick as the most likely
     structure that these cells would fit inside?                a) a carbon atom            b) a eukaryotic cell
          c) a viral particle             d) a hydrogen bond         e) none of these is correct


3.  In general, of all the molecules found in living cells, by far the most abundant is (are)?

        a) proteins     b) various ions     c) water     d) nucleic acid     e) none of above


4.  All known cells are surrounded by a membrane?       a) true      b) false


     Extra Credit questions


5.   A buffer is a substance that resists changes in pH.     a)  true        b) false

6.  Which of the following substances is characteristic of ”all” phospholipid molecules, but not
     found in ordinary triglycerides?         a) inorganic phosphate                  b) fatty acids
          c) glycerol           d) ester bonds      e) choose this answer if all of these are characteristics