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Where is the stroma and thylakoid space relative to
the thylakoid membrane?
• The thylakoid space is inside the thylakoid
membrane and the stroma is outside
Where is chlorophyll located?
• On the thylakoid membrane
What are the three products of
photolysis?
• Oxygen to the atmosphere
• H+ ions inside the thylakoid membrane
• Electrons to chlorophyll
What frequencies of light are absorbed and reflected
by chlorophyll
• Red and blue are absorbed
• Green is reflected
What happens to chlorophyll
when it absorbs light energy?
• Loses electrons to the electron transport
chain
Describe what is meant by the
electron transport chain.
• Series of protein molecules embedded on
the membrane where each has a
successively higher attraction for electrons
than the previous one
What happens with the energy
released at each redox reaction?
• Used to actively transport H+ ions into the
thylakoid space
Is the formation of ATP energy
requiring or energy releasing?
• Energy requiring
Are H+ freely permeable to the thylakoid membrane? How
do H+ ions diffusion out of the thylakoid space into the
stroma?
• No
• Through ATP Synthase transport protein
Is the flow of H+ ions through ATP Synthase
energy requiring or energy releasing?
• Energy releasing
• This energy is used to form ATP
What serves as the final electron acceptor at
the end of the electron transport chain?
• NADP+
What three things are needed for the light reactions? What
three things are produced in the light reactions?
• Needed--Light, water, chlorophyll
• Produced--oxygen (to atmosphere), ATP,
and NADPH (both to light independent
Calvin Cycle)
The synthesis part of
photosynthesis is known as
• Calvin Cycle
• (Light independent reactions/ Dark
Reactions)
Name the step of the calvin cycle when carbon from outside
living things is incorporated into living things.
• Carbon Fixation
Name the enzyme that performs
carbon fixation
• Rubisco
Name two products of the light reactions that are needed for
the Calvin Cycle
• ATP and NADPH
Name the molecule that cycles out of the
calvin cycle to form biomolecules.
• PGAL (G3P)