Exam 10: Photosynthesis

In metabolic processes of cell respiration and photosynthesis, prosthetic groups such as heme and iron-sulphur complexes are encountered in components of the electron transport chain. What do they do?

In any ecosystem, terrestrial or aquatic, what group(s)is (are)always necessary?

It is a particularly hot, dry summer. The town has banned excessive water use and so you cannot water your lawn. After a few weeks the grass has gone brown, except a few patches where the grass seems to be doing fine. You notice that this grass has a broader leaf and is not the same species as most of your lawn. You conclude that this grass is a

Use the following figure to answer the questions below. -Referring to the figure above, oxygen would inhibit the CO₂ fixation reactions in

Where is the Calvin cycle located in a C₄ plant?

Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?

Use the following figure and the compounds labelled A, B, C, D, and E to answer the following questions. -If ATP used by this plant is labelled with radioactive phosphorus, which molecule or molecules of the Calvin cycle will be radioactively labelled first?

According to the endosymbiotic theory, the original chloroplast was a

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

Cyclic electron flow may be photoprotective (protective to light-induced damage). Which of the following experiments could provide information on this phenomenon?

Chemiosmosis in chloroplasts and mitochondria share all but one of the following conditions.

Three "turns" of the Calvin cycle generate a "surplus" molecule of glyceraldehyde 3-phosphate (G3P). Which of the following is a consequence of this?

In C₃ photosynthesis, the reactions that require ATP take place in

Photorespiration occurs when rubisco reacts RuBP with

Some photosynthetic organisms contain chloroplasts that lack photosystem II, yet are able to survive. The best way to detect the lack of photosystem II in these organisms would be

As a research scientist, you measure the amount of ATP and NADPH consumed by the Calvin cycle in 1 hour. You find 30 000 molecules of ATP consumed, but only 20 000 molecules of NADPH. Where did the extra ATP molecules come from?

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

Suppose the interior of the thylakoids of isolated chloroplasts were made acidic and then transferred in the dark to a pH 8 solution. What would be likely to happen?

Carotenoids are often found in foods that are considered to have antioxidant properties in human nutrition. What related function do they have in plants?

In mechanism, photophosphorylation is most similar to