Light Reactions Part 2 (How Non-Cyclic Electron Flow Makes ATP): Interactive Lyrics and Flashcards

[qdeck random = “true”]

[h]Light Reactions Flashcards Deck 1

[i] Here’s how these flashcards work.

• Click ‘Check Answer’ to see the answer to each card.
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• If you don’t know it as well as you’d like, click ‘Need more practice,’ and that card will go to the bottom of the deck so you can practice it again.
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[!]1a[/!]

[q]A _________ is a protein complex in the thylakoid membrane that sends electrons to an electron transport chain.

[textentry]

[a]A photosystem is a protein complex in the thylakoid membrane that sends electrons to an electron transport chain.

[!]2a[/!]

[q]In ________ electron flow, electrons start at Photosystem Two

[textentry]

[a]In non-cyclic electron flow, electrons start at Photosystem Two

[!]3a[/!]

[q]In each photosystem, pigment molecules are organized into an _______________

[textentry]

[a]In each photosystem, pigment molecules are organized into an antenna complex.

[!]4a[/!]

[q]At the ____________, an energized electron is passed to a primary electron acceptor, which passes the electron to an electron transport chain.

[textentry]

[a]At the reaction center, an energized electron is passed to a primary electron acceptor, which passes the electron to an electron transport chain.

[!]5a[/!]

[q]The ____________ in Photosystem Two is p₆₈₀.

[textentry]

[a]The reaction center in Photosystem Two is p₆₈₀.

[!]6a[/!]

[q]When the ______ ______ _____ grabs an electron from reaction center p₆₈₀, p₆₈₀ becomes oxidized.

[textentry]

[a]When the primary electron acceptor grabs an electron from reaction center p680, p680 becomes oxidized.

[!]7a[/!]

[q]The _____ _______ ______ in Photosystem Two uses the energy from energized electrons to pump protons from the stroma to the thylakoid space. 

[textentry]

[a]The electron transport chain in Photosystem Two uses the energy from energized electrons to pump protons from the stroma to the thylakoid space.

[!]8a[/!]

[q]The electron transport chain in Photosystem Two uses the energy from energized electrons to pump ______ from the stroma to the thylakoid space.

[textentry]

[a]The electron transport chain in Photosystem Two uses the energy from energized electrons to pump protons from the stroma to the thylakoid space.

[!]9a[/!]

[q]Pumping _____ from the stroma to the thylakoid space creates a diffusion gradient.

[textentry]

[a]Pumping protons from the stroma to the thylakoid space creates a diffusion gradient.

[!]10a[/!]

[q]Pumping protons from the stroma to the thylakoid space creates a _______ ______.

[textentry]

[a]Pumping protons from the stroma to the thylakoid space creates a diffusion gradient. (note that concentration gradient is a perfectly good answer)

[!]11a[/!]

[q]Photosystem Two’s pumping action concentrates protons in the ______ ______.

[textentry]

[a]Photosystem Two’s pumping action concentrates protons in the thylakoid space.

[!]12a[/!]

[q]Because protons are charged particles, they can’t _____ across the thylakoid membrane’s phospholipid bilayer.

[textentry]

[a]Because protons are charged particles, they can’t diffuse across the thylakoid membrane’s phospholipid bilayer.

[!]13a[/!]

[q]To move down their concentration gradient, ______ need to move from the thylakoid space back to the stroma.

[textentry]

[a]To move down their concentration gradient, protons need to move from the thylakoid space back to the stroma.

[!]14a[/!]

[q]ATP synthase is both a _________ _________and an enzyme.

[textentry]

[a]ATP synthase is both a channel protein and an enzyme.

[!]15a[/!]

[q]ATP synthase has binding sites for ____ and P, as well as channels for proton diffusion.

[textentry]

[a]ATP synthase has binding sites for ADP and P, as well as channels for proton diffusion.

[!]16a[/!]

[q]ATP synthase has binding sites for ADP and P, as well as channels for _____ diffusion.

[textentry]

[a]ATP synthase has binding sites for ADP and P, as well as channels for proton diffusion.

[!]17a[/!]

[q]When protons diffuse through ATP synthase, their kinetic energy is used to change the conformation of the ADP and P ______ ____, which catalyzes ATP formation.

[textentry]

[a]When protons diffuse through ATP synthase, their kinetic energy is used to change the conformation of the ADP and P binding sites, which catalyzes ATP formation.

[!]18a[/!]

[q]The only port through which ______ can diffuse from the thylakoid space to the stroma is ATP Synthase.

[textentry]

[a]The only port through which protons can diffuse from the thylakoid space to the stroma is ATP Synthase.

[!]19a[/!]

[q]The only port through which protons can diffuse from the thylakoid space to the stroma is ______ _____.

[textentry]

[a]The only port through which protons can diffuse from the thylakoid space to the stroma is ATP Synthase.

[!]20a[/!]

[q]The energy for synthesis of ATP by ATP synthase comes from diffusing proton’s _____ energy.

[textentry]

[a]The energy for synthesis of ATP by ATP synthase comes from diffusing proton’s kinetic energy.

[!]21a[/!]

[q]Using the kinetic energy of diffusing protons to power ___ synthesis is called chemiosmosis.

[textentry]

[a]Using the kinetic energy of diffusing protons to power ATP synthesis is called chemiosmosis.

[!]22a[/!]

[q]The two organelles that use chemiosmosis to make ___ are mitochondria and chloroplasts.

[textentry]

[a]The two organelles that use chemiosmosis to make ATP are mitochondria and chloroplasts.

[/qdeck]

[qdeck random = “true”]

[h]Light Reactions Flashcards Deck 2

^{[i]introduction}

[!]1b[/!]

[q]A photosystem is a protein complex in the _______ membrane that sends electrons to an electron transport chain.

[textentry]

[a]A photosystem is a protein complex in the thylakoid membrane that sends electrons to an electron transport chain.

[!]2b[/!]

[q]In non-cyclic electron flow, electrons start at Photosystem ___.

[textentry]

[a]In non-cyclic electron flow, electrons start at Photosystem Two

[!]3b[/!]

[q]In a photosystem, electron “bouncing” ends when an _________ electron enters a reaction center.

[textentry]

[a]In a photosystem, electron “bouncing” ends when an energized electron enters a reaction center.

[!]4b[/!]

[q]At the reaction center, an energized electron is passed to a _______ ______ _______, which passes the electron to an electron transport chain.

[textentry]

[a]At the reaction center, an energized electron is passed to a primary electron acceptor, which passes the electron to an electron transport chain.

[!]5b[/!]

[q]The reaction center in Photosystem ___ is p₆₈₀.

[textentry]

[a]The reaction center in Photosystem Two is p₆₈₀.

[!]6b[/!]

[q]When the primary electron acceptor grabs an electron from________  ______ p₆₈₀, p₆₈₀ becomes oxidized.

[textentry]

[a]When the primary electron acceptor grabs an electron from reaction center p₆₈₀, p₆₈₀ becomes oxidized.

[!]7b[/!]

[q]The electron transport chain in Photosystem ___ uses the energy from energized electrons to pump protons from the stroma to the thylakoid space.

[textentry]

[a]The electron transport chain in Photosystem Two uses the energy from energized electrons to pump protons from the stroma to the thylakoid space.

[!]8b[/!]

[q]The electron transport chain in Photosystem Two uses the energy from energized electrons to pump protons from the _____ to the thylakoid space.

[textentry]

[a]The electron transport chain in Photosystem Two uses the energy from energized electrons to pump protons from the stroma to the thylakoid space.

[!]9b[/!]

[q]Pumping protons from the _____ to the thylakoid space creates a diffusion gradient.

[textentry]

[a]Pumping protons from the stroma to the thylakoid space creates a diffusion gradient.

[!]10b[/!]

[q]Photosystem ____’s pumping action concentrates protons in the thylakoid space.

[textentry]

[a]Photosystem Two‘s pumping action concentrates protons in the thylakoid space.

[!]11b[/!]

[q]Because _______ are charged particles, they can’t diffuse across the thylakoid membrane’s phospholipid bilayer.

[textentry]

[a]Because protons are charged particles, they can’t diffuse across the thylakoid membrane’s phospholipid bilayer.

[!]12b[/!]

[q]Because protons are charged particles, they can’t diffuse across the thylakoid membrane’s __________ ___________

[textentry]

[a]Because protons are charged particles, they can’t diffuse across the thylakoid membrane’s phospholipid bilayer.

[!]13b[/!]

[q]To move down their concentration gradient, protons need to move from the ______ ______ back to the stroma.

[textentry]

[a]To move down their concentration gradient, protons need to move from the thylakoid space back to the stroma.

[!]14b[/!]

[q]ATP synthase is both a channel protein and an ______.

[textentry]

[a]ATP synthase is both a channel protein and an enzyme.

[!]15b[/!]

[q]ATP synthase has binding sites for ADP and _, as well as channels for proton diffusion.

[textentry]

[a]ATP synthase has binding sites for ADP and P, as well as channels for proton diffusion.

[!]16b[/!]

[q]When ______ diffuse through ATP synthase, their kinetic energy is used to change the conformation of the ADP and P binding sites, which catalyzes ATP formation.

[textentry]

[a]When protons diffuse through ATP synthase, their kinetic energy is used to change the conformation of the ADP and P binding sites, which catalyzes ATP formation.

[!]17b[/!]

[q]When protons diffuse through ATP synthase, their kinetic energy is used to change the conformation of the ADP and P binding sites, which _______ ATP formation.

[textentry]

[a]When protons diffuse through ATP synthase, their kinetic energy is used to change the conformation of the ADP and P binding sites, which catalyzes ATP formation.

[!]18b[/!]

[q]The only port through which protons can _____ from the thylakoid space back to the stroma is ATP Synthase.

[textentry]

[a]The only port through which protons can diffuse from the thylakoid space back to the stroma is ATP Synthase.

[!]19b[/!]

[q]The energy for synthesis of ___ by ATP synthase comes from diffusing proton’s kinetic energy.

[textentry]

[a]The energy for synthesis of ATP by ATP synthase comes from diffusing proton’s kinetic energy.

[!]20b[/!]

[q]Using the _____ energy of diffusing protons to power ATP synthesis is called chemiosmosis.

[textentry]

[a]Using the kinetic energy of diffusing protons to power ATP synthesis is called chemiosmosis.

[!]21b[/!]

[q]Using the kinetic energy of diffusing protons to power ATP synthesis is called ___________.

[textentry]

[a]Using the kinetic energy of diffusing protons to power ATP synthesis is called chemiosmosis.

[!]22b[/!]

[q]The two organelles that use chemiosmosis to make ATP are __________ and chloroplasts.

[textentry]

[a]The two organelles that use chemiosmosis to make ATP are mitochondria and chloroplasts.

[/qdeck]

[qdeck random = “true”]

[h]Light Reactions Flashcards Deck 3

[i]introduction

[!]1c[/!]

[q]A photosystem is a protein complex in the thylakoid membrane that sends electrons to an ______ _______ ______.

[textentry]

[a]A photosystem is a protein complex in the thylakoid membrane that sends electrons to an electron transport chain.

[!]2c[/!]

[q]In each photosystem, ______ molecules are organized into an antenna complex.

[textentry]

[a]In each photosystem, pigment molecules are organized into an antenna complex.

[!]3c[/!]

[q]In a photosystem, electron “bouncing” ends when an energized electron enters a ______ ______.

[textentry]

[a]In a photosystem, electron “bouncing” ends when an energized electron enters a reaction center.

[!]4c[/!]

[q]At the reaction center, an energized electron is passed to a primary electron acceptor, which passes the electron to an ______ ______ _______.

[textentry]

[a]At the reaction center, an energized electron is passed to a primary electron acceptor, which passes the electron to an electron transport chain.

[!]5c[/!]

[q]The reaction center in Photosystem Two is ____.

[textentry]

[a]The reaction center in Photosystem Two is P₆₈₀.

[!]6c[/!]

[q]When the primary electron acceptor grabs an electron from reaction center P₆₈₀, P₆₈₀ becomes ______.

[textentry]

[a]When the primary electron acceptor grabs an electron from reaction center P₆₈₀, P₆₈₀ becomes oxidized.

[!]7c[/!]

[q]The electron transport chain in Photosystem Two uses the energy from _______ ______ to pump protons from the stroma to the thylakoid space.

[textentry]

[a]The electron transport chain in Photosystem Two uses the energy from energized electrons to pump protons from the stroma to the thylakoid space.

[!]8c[/!]

[q]The electron transport chain in Photosystem Two uses the energy from energized electrons to pump protons from the stroma to the _______ space.

[textentry]

[a]The electron transport chain in Photosystem Two uses the energy from energized electrons to pump protons from the stroma to the thylakoid space.

[!]9c[/!]

[q]Pumping protons from the stroma to the _______ _____ creates a diffusion gradient.

[textentry]

[a]Pumping protons from the stroma to the thylakoid space creates a diffusion gradient.

[!]10c[/!]

[q]Photosystem Two’s pumping action concentrates ______ in the thylakoid space.

[textentry]

[a]Photosystem Two’s pumping action concentrates protons in the thylakoid space.

[!]11c[/!]

[q]Because protons are _______ particles, they can’t diffuse across the thylakoid membrane’s phospholipid bilayer.

[textentry]

[a]Because protons are charged particles, they can’t diffuse across the thylakoid membrane’s phospholipid bilayer.

[!]12c[/!]

[q]To move down their __________ gradient, protons need to move from the thylakoid space back to the stroma.

[textentry]

[a]To move down their concentration gradient, protons need to move from the thylakoid space back to the stroma (note that diffusion gradient is a fine answer, too)

[!]13c[/!]

[q]To move down their concentration gradient, protons need to move from the thylakoid space back to the ______.

[textentry]

[a]To move down their concentration gradient, protons need to move from the thylakoid space back to the stroma.

[!]14c[/!]

[q]ATP synthase has ________ sites for ADP and P, as well as channels for proton diffusion.

[textentry]

[a]ATP synthase has binding sites for ADP and P, as well as channels for proton diffusion.

[!]15c[/!]

[q]ATP synthase has binding sites for ADP and P, as well as _______ for proton diffusion.

[textentry]

[a]ATP synthase has binding sites for ADP and P, as well as channels for proton diffusion.

[!]16c[/!]

[q]When protons diffuse through ATP synthase, their kinetic energy is used to change the ___________ of the ADP and P binding sites, which catalyzes ATP formation.

[textentry]

[a]When protons diffuse through ATP synthase, their kinetic energy is used to change the conformation of the ADP and P binding sites, which catalyzes ATP formation. (If you wrote “shape,” you clearly understand the concept.)

[!]17c[/!]

[q]When protons diffuse through ATP synthase, their kinetic energy is used to change the conformation of the ADP and P binding sites, which catalyzes ___ formation.

[textentry]

[a]When protons diffuse through ATP synthase, their kinetic energy is used to change the conformation of the ADP and P binding sites, which catalyzes ATP formation.

[!]18c[/!]

[q]The only port through which protons can diffuse from the ______ ______ back to the stroma is ATP Synthase.

[textentry]

[a]The only port through which protons can diffuse from the thylakoid space back to the strom is ATP Synthase.

[!]19c[/!]

[q]The energy for synthesis of ATP by _____ ______ comes from diffusing proton’s kinetic energy.

[textentry]

[a]The energy for synthesis of ATP by ATP synthase comes from diffusing proton’s kinetic energy.

[!]20c[/!]

[q]Using the kinetic energy of diffusing ______ to power ATP synthesis is called chemiosmosis.

[textentry]

[a]Using the kinetic energy of diffusing protons to power ATP synthesis is called chemiosmosis.

[!]21c[/!]

[q]The two organelles that use ___________ to make ATP are mitochondria and chloroplasts.

[textentry]

[a]The two organelles that use chemiosmosis to make ATP are mitochondria and chloroplasts.

[!]22c[/!]

[q]The two organelles that use chemiosmosis to make ATP are mitochondria and _________.

[textentry]

[a]The two organelles that use chemiosmosis to make ATP are mitochondria and chloroplasts.

[/qdeck]