Choose the one answer that best answers the question.
 |
1 | |
Photosynthesis is a chemical process that converts ____ energy to _____ energy. |
| | A) | light, chemical |
| | B) | chemical, light |
| | C) | chemical, sugar |
| | D) | sunlight, light |
|
|
2 | |
Which of the following is the proper summary equation for photosynthesis? |
| | A) | C6H12O6 + CO2 in the presence of light and chlorophyll yields H2O + O2 |
| | B) | H2O + CO2 in the presence of light and chlorophyll yields C6H12O6 + O2 + H2O |
| | C) | H2O + CO2 yields C6H12O6 + O2 + H2O |
| | D) | CO2 in the presence of light and chlorophyll yields C6H12O6 + O2 |
|
|
3 | |
Plants typically store the sugar produced from photosynthesis in the form of ____. |
| | A) | Protein |
| | B) | Fatty acids |
| | C) | Starch |
| | D) | Cellulose |
|
|
4 | |
If the Rf value for the paper chromatography of carotene was 0.5 and the value for chlorophyll b was 0.7, then which of the following choices is true for these two pigments? |
| | A) | Carotene was more soluble than chlorophyll b. |
| | B) | Chlorophyll b was a larger molecule than carotene. |
| | C) | Chlorophyll b traveled farther up the paper. |
| | D) | All of the above |
|
|
5 | |
What is the function of a spectroscope? |
| | A) | To combine all colors to make white light. |
| | B) | To measure the size of molecules. |
| | C) | To measure the solubility of molecules in a particular solvent. |
| | D) | To separate light into its component colors. |
|
|
6 | |
If you wanted to retard the growth of a plant, then which color(s) of light would you most likely use? |
| | A) | Green only |
| | B) | Purple and red |
| | C) | Green and purple |
| | D) | Yellow and green |
|
|
7 | |
What color of light does the chlorophyll in plant extract fluoresce? |
| | A) | Black |
| | B) | Green |
| | C) | Red |
| | D) | Blue |
|
|
8 | |
Two tubes, A and B, containing chloroplasts, 6.5 pH buffer, water, and DCPIP are observed for 30 minutes for a color change. Tube A has changed from blue to clear. Tube B has remained blue. What can you conclude from this experiment? |
| | A) | Photosynthesis and electron transportation has occurred in Tube A and not in Tube B. |
| | B) | Photosynthesis and electron transportation has occurred in Tube B and not in Tube A. |
| | C) | Tube A was kept in the dark. |
| | D) | The pH of the tubes must have been incorrect to get reliable results. |
|
|
9 | |
Consider the experiment with phenol red (Procedure 12.3). What can you conclude about the effect a photosynthesizing aquatic plant has on the pH of water? |
| | A) | There is no effect. |
| | B) | The pH of the water will become more acidic. |
| | C) | The pH of the water will increase. |
| | D) | The experiment with phenol red had nothing to do with the pH of water. |
|
|
10 | |
Consider the experiment to observe starch production during photosynthesis (Procedure 12.5). Why was iodine added after boiling the leaf in water and then in methanol? |
| | A) | To bleach out the chlorophyll from the leaf. |
| | B) | To bleach out the starch from the leaf. |
| | C) | To stain the chlorophyll in the leaf. |
| | D) | To stain the starch in the leaf. |
|
2002 McGraw-Hill Higher Education