Exam 10: Photosynthesis

Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of algae to different wavelengths of light. He added aerobic bacteria and then noted in which areas the bacteria congregated. He noted that the largest groups were found in the areas illuminated by the red and blue light. -What did Engelmann conclude about the congregation of bacteria in the red and blue areas?

The pH of the inner thylakoid space has been measured, as have the pH of the stroma and of the cytosol of a particular plant cell. Which, if any, relationship would you expect to find?

The accumulation of free oxygen in Earth's atmosphere began

In a plant cell, where are the ATP synthase complexes located?

When oxygen is released as a result of photosynthesis, it is a direct by-product of

In a cyanobacterium, the reactions that produce NADPH occur in

What are the products of linear photophosphorylation?

Photorespiration occurs when rubisco reacts RuBP with

Use the following figure and the compounds labeled A, B, C, D, and E to answer the following questions. Figure 10.2 -If the carbon atom of the incoming CO₂ molecule is labeled with a radioactive isotope of carbon, which organic molecules will be radioactively labeled after one cycle?

If atmospheric CO₂ concentrations increase twofold or more, how will plants be affected, disregarding any changes in climate?

Use the following figure and the compounds labeled A, B, C, D, and E to answer the following questions. Figure 10.2 -Which molecule(s)of the Calvin cycle is (are)also found in glycolysis?

Figure 10.1 -What wavelength of light in the figure is most effective in driving photosynthesis?

Which of the following statements best represents the relationships between the light reactions and the Calvin cycle?

Where do the enzymatic reactions of the Calvin cycle take place?

Which of the events listed below occurs in the light reactions of photosynthesis?

Figure 10.3 -Referring to Figure 10.3, oxygen would inhibit the CO₂ fixation reactions in

Which of the following statements best describes the relationship between photosynthesis and respiration?

The phylogenetic distribution of the enzyme rubisco is limited to

Reduction of NADP⁺ occurs during

CAM plants keep stomata closed in daytime, thus reducing loss of water. They can do this because they