46 notecards = 12 pages (4 cards per page)
1) The two molecules shown in the figure above are best described
2) Which of the following correctly describes any reaction that has
reached chemical equilibrium?
3) Which of the following statements is true about buffer
4) In living systems molecules involved in hydrogen bonding almost
always contain either oxygen or nitrogen or both. How do you explain
5) About twenty-five of the ninety-two natural elements known to be
essential to life. Which four of these twenty-five elements make up
approximately 96 percent of living matter?
10) The molecule illustrated in the accompanying figure_____.
11) Which of the following is the strongest evidence that protein
structure and function are correlated?
12) What is the difference between covalent bonds and ionic
13) Which of the functional groups below acts most like an acid in
14) Which functional group shown above is a characteristic of
15) Which of the following includes all of the pyrimidines found in
RNA and DNA?
16) Fluorine has an atomic number of 9. Which of the following would
you do to a neutral fluorine atom to complete its valence
17) The element present in all organic molecules is_____.
18) What causes the shape of the molecule shown above?
19) Why is carbon so important in biology?
20) Which of the following is NOT a polymer?
21) Agrobacterium infects plants and causes them to form tumors. You
determine that tumor formation requires a large amount of the plant’s
energy for tissue formation. How might this change the number of
offspring a plant produces, and what is the most likely explanation
for this change?
22) A salamander relies on hydrogen bonding to stick to various
surfaces. Therefore, a salamander would have the greatest difficulty
clinging to a______.
23) Amino acids are acids because they always possess which
24) The phylogenetic tree below_____.
A) Includes noncellular life-forms
25) A carbon atom is most likely to form what kind of bond(s) with
26) Which of the following types of cells utilize deoxyribonucleic
acid (DNA) as their genetic material but do not have their DNA encased
within a nuclear envelope?
27) Why does ice float in liquid water?
28) The molar mass of glucose is 180 grams per mole (g/mol). Which of
the following procedures should you carry out make a 1 M solution of
glucose? Into 0.8 liter (L) of water, dissolve____.
29) How does a scientific theory differ from a scientific
30) If a DNA sample were composed of 10% thymine, what would be the
percentage of guanine?
31) The atomic number of chlorine is 17. The atomic number of
magnesium is 12. What is the formula for magnesium chloride?
32) The molecule shown the accompanying figure is a _____.
33) You find yourself standing next to a beautiful rose bush. Which
of the following do you and the rose have in common?
34) The experimental approach taken in current biological
investigations presumes that____.
35) Which level of protein structure do the a-helix and the B-pleated
36) Increased atmospheric CO2 concentrations might have what effect
Use the following information when answering the corresponding
38) Why are hydrocarbons insoluble in water?
39) Which of these provides evidence of the common ancestry of all
40) Which polysaccharide is an important component in the structure
of many animals and fungi?
41) Which type of bond must be broken for water to vaporize?
42) If the cytoplasm of a cell is at pH 7, and the mitochondrial
matrix is at pH 8, then the concentration of H+ ions_______.
43) Which molecule shown above contains an amino acid functional
group, but is NOT an amino acid?
44) Based on your knowledge of the polarity of water molecules, the solute molecule depicted here is most likely_______.
45) Refer to the figure above (first three rows of the periodic
table). What element has properties most similar to carbon?
46) One mole of the compound above would weigh how many grams? (Note:
The atomic masses, in daltons, are approximately 12 for carbon, 1 for
hydrogen, and 16 for oxygen.)
47) Normal hemoglobin is a tetramer, consisting of two molecules of B
hemoglobin and two molecules of a hemoglobin. In sickle-cell disease,
as a result of a single amino acid change, the mutant hemoglobin
tetramers associate with each other and assemble into large fibers.
Based on this information alone, we can conclude that sickle-cell
48) A controlled experiment_______.
49) Which of these is an example of inductive reasoning?
50) Hydrophobic substance such as vegetable oil are_____.