Which of the following molecules is the primary product of photosystem I?
  • NADPH
  • NADP
  • Oxygen, ATP, and NADPH
  • Protons
The electrons derived from this oxidation reaction in the light reactions are used to reduce _________ to _________.
  • water; NADPH
  • NADP+; NADPH
  • CO2; G3P
  • NADPH; NADP+
Where does the Calvin cycle occur?
  • C
  • A
  • E
  • A and C
What is the importance of the light-independent reactions in terms of carbon flow in the biosphere?
  • Photosynthesis stores energy in complex organic molecules; respiration releases energy from complex organic molecules
  • The light-independent reactions turn CO2, a gas, into usable carbon in the form of sugars.
  • They convert carbon dioxide to sugar.
  • NADPH-During the Calvin cycle electrons stored in NADPH are used to reduce carbon.
The Calvin cycle oxidizes the light-reactions product ________ to ________.
  • NADP+; NADPH
  • water; NADPH
  • making sugar
  • NADPH; NADP+
Which of the following statements best describes the relationship between the light-dependent and light-independent reactions of photosynthesis?
  • ATP and NADPH
  • NADPH-During the Calvin cycle electrons stored in NADPH are used to reduce carbon.
  • Photosynthesis stores energy in complex organic molecules; respiration releases energy from complex organic molecules
  • The light-dependent reactions produce ATP and NADPH, which are then used by the light-independent reactions.
True or false? The light-dependent reactions of photosynthesis use water and produce oxygen.
  • Protons
  • NADP
  • True
  • False
Which of the following products of the light reactions of photosynthesis is consumed during the Calvin cycle?
  • Regneration of RuBP
  • NADPH-During the Calvin cycle electrons stored in NADPH are used to reduce carbon.
  • The light-dependent reactions produce ATP and NADPH, which are then used by the light-independent reactions.
  • ATP and NADPH
The overall function of the Calvin cycle is _____.
  • sunlight
  • making sugar
  • water; NADPH
  • NADPH; NADP+
Chlorophyll can be found in _____.
  • A and C
  • A
  • C
  • B
What is the primary function of the Calvin cycle?
  • They use light energy to drive the synthesis of organic molecules from inorganic materials.
  • synthesize simple sugar from carbon dioxide
  • They convert carbon dioxide to sugar.
  • The light-independent reactions turn CO2, a gas, into usable carbon in the form of sugars.
Which term describes ATP production resulting from the capture of light energy by chlorophyll?
  • Photophosphorylation
  • 6 CO2 + 6 H2O → C6H12O6 + 6 O2
  • Oxygen, ATP, and NADPH
  • Photosynthesis
The electrons derived from this oxidation reaction in the Calvin cycle are used to reduce _________ to _________.
  • H2O; O2
  • NADP+; NADPH
  • CO2; G3P
  • sunlight
When light strikes chlorophyll molecules, they lose electrons, which are ultimately replaced by _____.
  • Photosynthesis stores energy in complex organic molecules; respiration releases energy from complex organic molecules
  • NADPH-During the Calvin cycle electrons stored in NADPH are used to reduce carbon.
  • The light-independent reactions turn CO2, a gas, into usable carbon in the form of sugars.
  • Splitting Water-The electrons removed from water are transferred to P680.
Inputs of the Calvin Cycle:
  • Oxygen, ATP, and NADPH
  • water; NADPH
  • NADP+, Water, ADP, Light
  • CO2, ATP, NADPH
Where does the Calvin cycle take place?
  • The light-dependent reactions
  • NADP+, Water, ADP, Light
  • synthesize simple sugar from carbon dioxide
  • stroma of the chloroplast
Which of these equations best summarizes photosynthesis?
  • stroma of the chloroplast
  • Oxygen, ATP, and NADPH
  • 6 CO2 + 6 H2O → C6H12O6 + 6 O2
  • Regneration of RuBP
Which of the following particles can pass through the ATP synthase channel?
  • Oxygen, ATP, and NADPH
  • Protons
  • Regneration of RuBP
  • NADPH
Inputs of the Light Reaction:
  • NADPH, O2, ATP
  • NADP+, Water, ADP, Light
  • Oxygen, ATP, and NADPH
  • ADP, G3P, NADP+
Which of the following reactions ensures that the Calvin cycle can make a continuous supply of glucose?
  • Regneration of RuBP
  • ATP and NADPH
  • NADPH-During the Calvin cycle electrons stored in NADPH are used to reduce carbon.
  • Photosynthesis stores energy in complex organic molecules; respiration releases energy from complex organic molecules
Which set of reactions uses H2O and produces O2?
  • synthesize simple sugar from carbon dioxide
  • The light-dependent reactions
  • 6 CO2 + 6 H2O → C6H12O6 + 6 O2
  • The light-dependent reactions produce ATP and NADPH, which are then used by the light-independent reactions.
Chloroplast membrane vesicles are equilibrated in a simple solution of pH 5‎ . The solution is then adjusted to pH 8‎ . Which of the following conclusions can be drawn from these experimental conditions?
  • NADPH-During the Calvin cycle electrons stored in NADPH are used to reduce carbon.
  • Splitting Water-The electrons removed from water are transferred to P680.
  • The light-dependent reactions produce ATP and NADPH, which are then used by the light-independent reactions.
  • ATP will not be produced because there is no ADP and inorganic phosphate in the solution.
True or false? The region of ATP synthase that catalyzes the production of ATP from ADP and inorganic phosphate spans the chloroplast membrane.
  • NADPH
  • NADP
  • True
  • False
The light reactions of photosynthesis use _____ and produce _____.
  • H2O; O2
  • NADP+; NADPH
  • water; NADPH
  • NADPH; NADP+
_____ splits water into 1/2 O2, H+, and e- .
  • A
  • C
  • E
  • A and C
The ultimate source of energy to support most life on Earth is _____.
  • sunlight
  • CO2; G3P
  • NADPH
  • Protons
Output of the Calvin Cycle:
  • NADP+, Water, ADP, Light
  • CO2, ATP, NADPH
  • NADPH, O2, ATP
  • ADP, G3P, NADP+
True or false? The chemiosmotic hypothesis states that the synthesis of ATP generates a proton gradient that leads to electron flow through an electron transport chain.
  • CO2; G3P
  • False
  • True
  • NADPH
According to the chemiosmotic hypothesis, what provides the energy that directly drives ATP synthesis?
  • Proton gradient
  • Photophosphorylation
  • False
  • ATP and NADPH
The photosynthetic membranes are found in the _____ in plant cells.
  • ultraviolet radiation and infrared radiation -Visible light is a narrow band of the electromagnetic spectrum that lies between ultraviolet radiation and infrared radiation.
  • The light-independent reactions turn CO2, a gas, into usable carbon in the form of sugars.
  • Chloroplasts-An elaborate system of interconnected thylakoid membranes segregates the stroma from the thylakoid space in the chloroplast.
  • Photosynthesis stores energy in complex organic molecules; respiration releases energy from complex organic molecules
Plants are photoautotrophs. What does this mean?
  • synthesize simple sugar from carbon dioxide
  • The light-dependent reactions produce ATP and NADPH, which are then used by the light-independent reactions.
  • They use light energy to drive the synthesis of organic molecules from inorganic materials.
  • The light-independent reactions turn CO2, a gas, into usable carbon in the form of sugars.
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