Photosynthesis Quiz
Photosynthesis Mastery Quiz
Test your knowledge on photosynthesis with this comprehensive quiz! Dive into 20 challenging questions that cover various aspects of photosynthesis, from the processes involved to the roles of pigments and reactions.
Whether you're a student, teacher, or simply a science enthusiast, this quiz will help enhance your understanding of one of nature's most vital processes.
- 20 Multiple Choice Questions
- Easy to understand
- Learn more about plant biology!
Photophosphorylation differs from oxidative phosphorylation in that
A. Regeneration of ATP is driven by a flow of protons through an ATP synthase.
B. Its enzymes are membrane-bound.
C. The final electron acceptor is NADP+ and not oxygen.
D. Energy is stored in the form of a proton concentration difference.
E. It involves an electron transport chain.
Which of the following does not occur during the Calvin cycle?
A. Carbon fixation
B. Release of oxygen
C. Consumption of ATP
D. Regeneration of the CO2 acceptor
E. Oxidation of NADPH
Which of the following is true concerning the role of redox reactions in photosynthesis and respiration?
A. Photosynthesis involves only oxidations while respiration involves only reductions.
B. None of the choices are correct.
C. Photosynthesis involves only reductions while respiration involves only oxidations.
D. In photosynthesis, carbon dioxide is oxidized to form sugar while in respiration, sugar is reduced to form carbon dioxide.
E. In photosynthesis, carbon dioxide is reduced to form sugar while in respiration, sugar is oxidized to form carbon dioxide.
Which one of the following photosynthetic pigments can be found at the photosystem reaction center?
A. Chlorophyll a
B. Chlorophyll b
C. phycocyanin
D. A carotenoid
E. None of the choices are correct.
Plant cells
A. None of the choices are correct.
B. Have mitochondria but do not have chloroplasts.
C. Lack mitochondria and chloroplasts.
D. Lack mitochondria but have chloroplasts.
E. Have mitochondria and chloroplasts.
Where is chlorophyll found in a plant cell?
A. cytoplasm
B. Thylakoid membranes
C. stroma
D. cristae
E. matrix
Which of the following has been a major source of ozone destruction over the past 50 years?
A. Ethylene glycol
B. Carbon dioxide
C. chlorofluorocarbons
D. chemiosmosis
E. Cellular respiration
To produce one glucose, the Calvin cycle needs ________________ molecule(s) of carbon dioxide
A. four
B. two
C. one
D. six
E. eight
The electrons lost from the reaction center of photosystem II are replaced by electrons from
A. photosystem I.
B. NADPH.
C. H2O.
D. CO2.
E. ATP.
Sunlight is a type of _________________ energy.
A. kinetic
B. electromagnetic
C. nuclear
D. potential
E. stored
How is photosynthesis similar in C4 plants and CAM plants?
A. In both cases, thylakoids are not involved in photosynthesis.
B. In both cases, only photosystem I is used.
C. In both cases, rubisco is not used to fix carbon initially.
D. Both types of plants make sugar without the Calvin cycle.
E. Both types of plants make most of their sugar in the dark.
Which of the following sequences correctly represents the flow of electrons during photosynthesis?
A. NADPH to O2 to CO2
B. NADPH to electron transport chain to O2
C. NADPH to chlorophyll to Calvin cycle
D. H2O to photosystem I to photosystem II
E. H2O to NADPH to Calvin cycle
The oxygen released into the air as a product of photosynthesis comes from
A. None of the choices are correct.
B. chlorophyll.
C. water.
D. glucose.
E. Carbon dioxide.
The light reactions occur in the _______________ while the Calvin cycle occurs in the _______________.
A. stroma ... nucleus
B. stroma ... Thylakoid membranes
C. Thylakoid membranes ... stroma
D. cytoplasm ... stroma
E. cytoplasm ... Thylakoid membrane
Which of the following are produced during the light reactions of photosynthesis?
A. glucose, ADP, NADP+, CO2
B. ATP, NADPH, CO2
C. ADP, NADP+, O2
D. ATP, NADPH, O2
E. glucose, ADP, NADP+
The addition of oxygen to RuBP by rubisco to form a two-carbon product that is then broken down by the cells to carbon dioxide and water defines
A. photorespiration.
B. Aerobic respiration.
C. photophosphorylation.
D. Cellular respiration.
E. chemiosmosis.
In photophosphorylation, energy from electron flow is used to transport ______________ from the ______________ to the thylakoid compartment, generating a concentration gradient of ______________.
A. electrons ... grana ... H+
B. H+ ... stroma ... H+
C. H+ ... stroma ... ATP
D. H+ ... grana ... electrons
E. electrons ... stroma ... H+
Which process is most directly driven by light energy?
A. Reduction of NADP+ molecules
B. Creation of a pH gradient by pumping protons across the thylakoid membrane
C. Removal of electrons from chlorophyll molecules
D. Carbon fixation in the stroma
E. ATP synthesis
How do the reaction centers of photosystem I and II differ?
A. One is located in the thylakoid membrane, and the other in the stroma.
B. Only photosystem I is found in the thylakoid membranes.
C. They preferentially absorb slightly different wavelengths of light.
D. None of the choices are correct.
E. Chlorophyll a is found in photosystem I, and chlorophyll b in photosystem II
Which of the following statements is a correct distinction between autotrophs and heterotrophs?
A. Cellular respiration is unique to heterotrophs.
B. Autotrophs, but not heterotrophs, can nourish themselves beginning with CO2 and other nutrients that are inorganic.
C. Only heterotrophs require chemical compounds from the environment.
D. Only heterotrophs require oxygen.
E. Only heterotrophs have mitochondria.
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