Exam 8: Photosynthesis

In order to understand the driving force of ATP synthase in chloroplasts, researchers broke open chloroplasts, isolated the thylakoid membrane and measured ATP synthesis under different light conditions. What were the results of this experiment?

What is the purpose of the third phase of the Calvin cycle?

As temperatures rise, photorespiration activity ____, because gas exchange via the ____ is inhibited.

What is the most common form in which the products of photosynthesis circulate from cell to cell in vascular plants?

2D chromatography is so named because ____.

P700 is located in photosystem ____ and is comprised of chlorophyll ____.

If you want to buy a colored light bulb for your indoor plants, which color would be the least effective?

The molecule of chlorophyll a in photosystem II's reaction center is known as P680 because ____.

Photosynthesis occurs in ____, while cellular respiration occurs in ____.

Which of these waves has the longest wavelength?

Where does photosynthesis take place in cyanobacteria?

In the light-dependent reactions of photosynthesis, an excited electron from photosystem II is passed along an electron transport chain to ____.

In order to elucidate the Calvin cycle, Calvin and his colleagues used two-dimensional paper chromatography to analyze the presence of different molecules under different conditions. What did they conclude from the accumulation of RuBP when CO₂levels were low?

If photosynthetic eukaryotic cells are provided with CO₂synthesized with heavy oxygen (¹⁸O), the¹⁸O label may be found in all but one compound. That compound is ____.

In any experiment, changes to the dependent variable based on the manipulations of the independent variable are measured. When determining the action spectrum of a given plant, what is the independent variable and what is the dependent variable?

When does a CAM plant use rubisco?

In Engelmann's classic experiment, why were the oxygen-requiring bacteria clustered around the regions of Spirogyra algae that were bathed in red, blue, and violet light?

Carbon fixation is a reduction reaction that converts inorganic CO₂into an organic molecule.

Explain the following statement: Nearly all life on Earth ultimately depends on the sun for energy.

Which products of the light reactions are used in the Calvin cycle?