1.
A biochemist is performing an experiment to determine the effect of chemical X on the growth of bacteria. Which test tube is the control?
A. 
B. 
C. 
D. 
2.
Which does a polymer most closely resemble?
A. 
B. 
C. 
D. 
3.
Different organisms store glucose in various forms. You discover a new species. Upon chemical analysis, you find that it is comprised of significant amounts of starch. To which organism might this new species be related?
A. 
B. 
C. 
D. 
4.
Which is NOT true of lipids?
A. 
They are commonly called fats and oils.
B. 
C. 
They are good for energy storage.
D. 
5.
What makes a water molecule polar?
A. 
Water has the ability to be frozen.
B. 
The pH of pure water varies with the temperature.
C. 
A water molecule has a slight charge on each end.
D. 
A water molecule is made up of three atoms.
6.
The diagram below shows two amino acids. What would biochemists call the result of chaining many of these molecules together?
A. 
B. 
C. 
D. 
7.
You are analyzing a compound in a laboratory. You find that it is made up of carbon, hydrogen, and oxygen in a ratio of one carbon, two hydrogen, and one oxygen atom. How will you classify the compound?
A. 
B. 
C. 
D. 
8.
You suspect that a chemical that you are testing in the lab is strongly basic. What might be its pH?
A. 
B. 
C. 
D. 
9.
Which class of macromolecules store and communicate genetic information?
A. 
B. 
C. 
D. 
10.
You are conducting an experiment to determine the presence of simple reducing sugars such as monosaccharides. Which indicator would you use to test for the presence of glucose?
A. 
B. 
C. 
D. 
11.
You are conducting a test to test for the presence of protein in a sample. What test or solution would you use and what would be you indication of positive for the presence of protein.
A. 
Iodine test; dark purple to black color change
B. 
Hydrogen Peroxide; presence of bubbles
C. 
Benedict's solution; dark brick red to brown color change after heating
D. 
Biuret test; lavender to dark purple color change
12.
What structure is being shown in the image?
A. 
B. 
C. 
D. 
13.
DNA and RNA are two types of ____________________________ which are composed of the subunits ________________________ .
A. 
B. 
C. 
D. 
Nucleic acids - nucleotides
14.
A florist place a bouquet of white carnations in water containing blue dye. After a time, the flower petals turn blue. What process helped the carnations change color?
A. 
B. 
C. 
Cohension and adhesion of water molecules
D. 
Formation of covalent bonds between hydrogen and oxygen molecules.
15.
The bond formed between the oxygen of one water molecule to the hydrogen of a different water molecule is called a ______________________ bond.
A. 
B. 
C. 
D. 
16.
Small insects can walk across the surface of calm water but they do not break the surface of the water and fall under. What property of water to have surface tension?
A. 
B. 
C. 
D. 
17.
Large bodies of water, such as lake and oceans, do not quickly fluctuate in temperature. What is the reason for the phenomenon?
A. 
B. 
Water is a versatile solvent
C. 
D. 
Water has a high heat capacity
18.
Two of the four classes of organic compounds are proteins and nucleic acids. What is the relationship between proteins and nucleic acids?
A. 
Nucleic acids use proteins for energy
B. 
Nucleic acids are monomer of proteins
C. 
Proteins are long polymer of nucleic acids
D. 
Nucleic acids contain the instructions to make proteins
19.
If you were testing the pH of baking soda, you would expected the pH to be
A. 
B. 
C. 
D. 
20.
Stomach acid is considered
A. 
B. 
C. 
D.