_____ releases energy that is used to pump hydrogen ions from the stroma into the thylakoid compartment.
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B The energy released as electrons are passed along the electron transport chain is used to pump protons into the thylakoid compartment.
In the electromagnetic spectrum, the type of radiation that we call visible light occurs between _____.
When light strikes chlorophyll molecules, they lose electrons, which are ultimately replaced by _____.
Photosynthesis is a redox reaction. This means that H2O is _____ during the light reactions and CO2 is _____ during the Calvin cycle.
In the thylakoid membranes, what is the main role of the pigment molecules in a light-harvesting complex?
Assume a thylakoid is somehow punctured so that the interior of the thylakoid is no longer separated from the stroma. This damage will have the most direct effect on which of the following processes?
Which of the following statements best describes the relationship between photosynthesis and respiration?
Which statement correctly describes how O2 production would be affected? (Assume that the light intensity does not change.)
The rate of O2 production would decrease because the rate of ADP and NADP+ production by the Calvin cycle would decrease.
NADPH note: The NADPH produced by photosystem I is used to supply energy for the production of sugars during photosynthesis.
Which of the following statements best describes the relationship between the light-dependent and light-independent reactions of photosynthesis?
The light-dependent reactions produce ATP and NADPH, which are then used by the light-independent reactions.
Which of the following reactions ensures that the Calvin cycle can make a continuous supply of glucose?
Which of the following products of the light reactions of photosynthesis is consumed during the Calvin cycle?
In C3 plants the conservation of water promotes _____.
CAM plants keep stomata closed in daytime, thus reducing loss of water. They can do this because they
The alternative pathways of photosynthesis using the C4 or CAM systems are said to be compromises. Why?
Autotrophs, but not heterotrophs, can nourish themselves beginning with CO2 and other nutrients that are inorganic.
Select the most accurate statement describing the basic function of the light reactions of photosynthesis.
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The basic function of the light reactions of photosynthesis is the conversion of solar energy to chemical energy.