Photosynthesis Quiz

Last Updated By JanetMayorga on 11/19/2012
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The ultimate source of energy to support most life on Earth is _____.

a)  sunlight
b)  chemosynthetic microbes
c)  photosynthetic plants
d)  the carbon cycle
e)  geothermal heat
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  • The photosynthetic membranes are found in the _____ in plant cells.
    a)Golgi apparatus
    c)endoplasmic reticulum
  • In the electromagnetic spectrum, the type of radiation that we call visible light occurs between _____.
    a)infrared radiation and microwaves
    b)infrared radiation and radio waves
    c)x-rays and ultraviolet radiation
    d)radio waves and microwaves
    e)ultraviolet radiation and infrared radiation
    e)ultraviolet radiation and infrared radiation
  • Which of the following is a product of the light reactions of photosynthesis?
    a)high-energy electrons
    e)All of the above.
    e)All of the above.
  • When light strikes chlorophyll molecules, they lose electrons, which are ultimately replaced by _____.
    a)fixing carbon
    b)splitting water
    c)oxidizing glucose
    d)breaking down ATP
    e)removing them from NADPH
    b)removing them from NADPH
  • Photosynthesis is a redox reaction. This means that H2O is _____ during the light reactions and CO2 is_ _____ during the Calvin Cycle.
    a)consumed ... consumed
    b)reduced ... reduced
    c)consumed ... reduced
    d)reduced ... oxidized
  • Which of the following products of the light reactions of photosynthesis is consumed during the Calvin cycle?

    a)ADP + Pi
  • The overall function of the Calvin cycle is _____.
    a)producing carbon dioxide
    b)capturing sunlight
    c)making sugar
    d)splitting water
    e)oxidizing glucose
    c)oxidizing glucose
  • C4 plants occur more commonly in desert conditions because _____.
    a)they produce carbon dioxide internally via photorespiration
    b)they can fix carbon at the lower CO2 concentrations that develop when the stomata are closed
    c)the stomata open at night and close in the day
    d)they produce water as a product of their photosynthetic pathways
    e)they store carbon by incorporating Co2 into organic acids that are later catabolized
    b)they store carbon by incorporating Co2 into organic acids that are later catabolized
  • Which of the following sequences correctly represents the flow of electrons during photosynthesis?

    a)NADPH ---> chlorophyll ---> Calvin cycle
    b)H2O ---> photosystem I ---> photosystem II
    c)NADPH ---> O2 ---> CO2
    d)NADPH ---> electron transport chain ---> O2
    e)H2O ---> NADPH ---> Calvin cycle
    e)H2O ---> NADPH ---> Calvin cycle
  • Which of the following statements is a correct distinction between autotrophs and heterotrophs?

    a)Autotrophs, but not heterotrophs, can nourish themselves beginning with CO2 and other nutrients that are inorganic.
    b)Only heterotrophs have mitochondria.
    c)Cellular respiration is unique to heterotrophs.
    d)Only heterotrophs require chemical compounds from the environment.
    e)Only heterotrophs require oxygen.
    a)Only heterotrophs require oxygen.
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Free Quiz Question From Photosynthesis Quiz
Question: The ultimate source of energy to support most life on Earth is _____.
chemosynthetic microbes
photosynthetic plants
the carbon cycle
geothermal heat