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What is the net input for light reactions?

Light, water, ADP, and NADP+

What is the net output for light reactions?


What is the net input for the Calvin cycle?


What is the net output of the Calvin cycle?

G3P, ADP and NADP+

In the light reactions, light energy is used to oxidize ______ to ______.

H2O and O2

The electrons derived from this oxidation reaction in the light reactions are used to reduce ____ to _____.


The Calvin cycle oxidizes the light reactions product ______ to NADP+


The electrons derived from this oxidation reaction in the Calvin cycle are used to reduce ______ to ______..

CO2 to G3P.

What occurs solely in Photosystem II only?

Reduction of electron transport chain between the two photosystems and the oxidation of water.

What occurs only in Photosystem I only?

Oxidation of electron transport chain between the two photosystems and the reduction of NADP+

What occurs in both Photosystems II and I.

Light absorption and the reduction of primary electron acceptor.

In PS II, what is oxidized?


In PS I, what is oxidized?


Which of these equations best summarizes photosynthesis?


Where does the Calvin cycle occur?

The Calvin cycle occurs in the stroma.

The light reactions of photosynthesis use _____ and produce _____.

Water and NADPH.

Carbon fixation involves the addition of carbon dioxide to _____.













Proton Gradient





_____ has a longer wavelength than _____.

Red..... green

Which process produces oxygen?


Which set of reactions uses H2O and produces O2?

The light-dependent reactions






They convert carbon dioxide to sugar.


Regeneration of RuBP

In C3 plants the conservation of water promotes _____.


In C4 and CAM plants carbon dioxide is fixed in the _____ of mesophyll cells.



Transfer fixed carbon dioxide to cells in which the Calvin cycle occurs.

The light reactions of photosynthesis supply the Calvin cycle with what?



H2O---->NADPH----> Calvin cycle

How is photosynthesis similar in C4 plants and CAM plants?

In both cases, rubisco is not used to fix carbon initially.



Which of the following does not occur during the Calvin cycle?

Release of Oxygen

In mechanism, photophosphorylation is most similar to

Oxidative phosphorylation in cellular respiration

Which process is most directly driven by light energy?

Removal of electrons from chlorophyll molecules

What is the molecule that is the main product of the Calvin cycle.


What is the basic role of CO2 in photosynthesis?

CO2 is fixed or incorporated into organic molecules.

True or False: The Calvin cycle has three phases: carbon fixation, reduction, and regeneration of RuBP.


Why are plants classified as producers?

Plants are classified as producers because they fix inorganic carbon into organic molecules.

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