Photosynthesis Study Cards
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52 Terms
1
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in the thylakoid membrane
Where are pigments located in a chloroplast?
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True
True or False. Both plant and animal cells contain mitochondria.
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pigments, like chlorophyll
\________ are used the absorb sunlight.
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convert glucose/organic compounds to ATP/energy
What is the function of the mitochondria?
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oxygen and glucose
Name two overall products of photosynthesis
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dark reaction
Which cycle does not require direct sunlight?
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light intensity, carbon dioxide concentration, temperature
Name three items that effect the rate of photosynthesis?
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C6H12O6
What is the chemical formula for glucose?
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H2O & CO2
What is the chemical formula for water & carbon dioxide?
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autotrophs
What are organisms called that make their own food?
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photoautotrophs
What are organisms called that use sunlight to make their own food?
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to produce ATP/energy for the dark reaction
What is the main function of the light reaction in photosynthesis?
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chloroplasts
Which organelle take in sunlight & makes organic compounds?
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oxygen
What gas is produced in photosynthesis?
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carbon dioxide and water
Name two overall reactants of photosynthesis.
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green
What color is reflected by green plants?
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they don't absorb the green wavelength
Why can't plants grow in green light?
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bond between phosphates
Where is energy located in an ATP molecule?
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ATP synthase places a phosphate and ADP close together to form a bond
How is ATP formed?
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oxygen, ATP, NADPH
Name the three products of the light reaction?
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light reaction
Oxygen, ATP, and NADPH are produced in what reaction?
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ATP-has three phosphate bonds... ADP only has two bonds
What contains more energy, ADP or ATP?
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dark reaction
CO2, ATP, & NADPH are used in what reaction?
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sunlight/light energy to chemical energy in glucose
What type of energy transfer is occurring in photosynthesis?
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glucose, ADP, and NADP+
What are the three products of the dark reaction?
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adenosine triphosphate
What does ATP stand for?
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H2O
What molecule provides an electron in photosynthesis?
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energy is released
What happens when a chemical bond is broken (like ATP to ADP)
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Chlorophyll
Name the main pigment involved in photosynthesis.
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oxygen
What byproduct is formed when plants split water besides H+?
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it does not need light
Why is the dark reaction called the "dark" reaction?
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pigment/chlorophyll
Where in a chloroplast is sunlight "absorbed"?
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make glucose
What is the main purpose of the Dark reaction?
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Light Rxn: along the thylakoid membrane
In which part of the chloroplast does the light reaction occur?
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the breakdown of glucose/food into energy/ATP
Describe photosynthesis.
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ADP, NADP+, glucose
List 3 products of the dark (light-independent) reaction.
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oxygen, ATP, NADPH
Name 3 products of the light-dependent reaction.
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water, ADP, NADP+
Name 3 reactants of the light-dependent reaction.
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ATP & NADPH
What "fuel/batteries" are formed in the light reaction?
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NADPH
What contains more energy, NADP+ or NADPH?
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ATP synthase rotates and places phosphate and ADP close enough to bond together)
How does ATP synthase "build" ATP?
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ATP, NADPH, carbon dioxide
Name 3 reactants of the dark (light-independent) reaction.
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provide "fuel/batteries" for the dark reaction
What is the purpose of the light reaction?
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NADH - it has taken on electrons
Which of the following molecules is the low energy NADH or NAD+?
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energy is released... example ATP to ADP
What occurs when a high-energy chemical bond is broken?
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a build-up of a certain substance on one side of a membrane
What is a concentration gradient?
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build up of H+ ions inside the thylakoid membrane, forms a concentration gradient
Where does the energy to convert ADP to ATP come from during the light reaction?
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H+ ions
What forms the concentration gradient during the electron transport chain in cellular respiration?
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ATP synthase
What is the name of the enzyme that joins ADP and a free phosphate (Pi) during the light reaction?
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Absorbs sunlight
Why is chlorophyll a the most important pigment in a plant?
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Changes carbon dioxide into glucose/organic compounds
What does the dark reaction cycle do?
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Dark Rxn: stroma/liquid in thylakoid
The light-independent (Dark) reaction?
Note 
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