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Light Reactions Review

Quiz by Karl Dietl

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11 questions
Show answers
  • Q1
    Which of the following is a PRODUCT of photosynthesis?
    Question Image
    Oxygen
    Chlorophyll
    CO2
    Water
    120s
  • Q2
    Why is photosynthesis called a chemical pathway?
    Because it has a cycle.
    Because we like complicated answers.
    The products of one reaction are consumed in the next reaction.
    Because reactions occur.
    120s
  • Q3
    In what organelle does photosynthesis occur?
    Nucleus
    Chloroplast
    Mitochondria
    Cytoplasm
    120s
  • Q4
    What happens when light hits either photosystem?
    Question Image
    ATP is created.
    Protons are pumped into the thylakoid.
    An electron becomes depressed.
    An electron becomes excited.
    120s
  • Q5
    Chlorophyll b...
    absorbs green light.
    is the main pigment in plants.
    is an accessory pigment.
    120s
  • Q6
    Which pigment is found in photosystems II and I.
    Carotenoids
    Stroma
    Chlorophyll b
    Chlorophyll a
    120s
  • Q7
    Why doesn't photosystem II run out of electrons?
    Because it has infinite electrons.
    Because the plant splits water to get more.
    Because photosystem II gets electrons from CO2
    120s
  • Q8
    How is ATP made?
    Protons leave the thylakoid through ATP Synthase.
    Protons enter the thylakoid through ATP Synthase.
    Sunlight excites electrons, which form ATP.
    Water splitting creates ATP.
    120s
  • Q9
    How is NADPH formed?
    Protons leave the thylakoid.
    Water is split apart.
    An electron is attached to NADP+.
    Sunlight excites the NADP+.
    120s
  • Q10
    Why are these called the light reactions?
    Because they need light to occur.
    Because they create light.
    Because they can not occur with light.
    Because they aren't as heavy.
    120s
  • Q11
    Why do leaves look green?
    Question Image
    Because it's a pretty color.
    Because they reflect green light.
    Because they absorb green light.
    Because they don't feel well.
    120s

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