Photosynthesis 4
Presentation
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Biology
•
10th Grade
•
Medium
Standards-aligned
Rose Marsh
Used 9+ times
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8 Slides • 6 Questions
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By R. Marsh Ph.D.
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Photosynthesis is a REDOX REACTION
It reverses the direction of electron flow in cellular respiration
H2O is OXIDIZED (loses an electron)
CO2 is REDUCED (gains electrons) to make SUGAR
The process requires energy (provided by light)
REDOX Reaction
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In the reaction, we can see:
Carbon dioxide (CO2) is reduced to carbohydrates
Water (H20) gets oxidized to oxygen
The energy is provided by the sunlight for this reaction.
REDOX Reaction
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Multiple Choice
2.The function accomplished by the light-dependent reactions is ______________.
Energy and electron storage
Sugar production
Carbon fixation
Conversion of sugar
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Multiple Choice
Where does light dependent specifically occur?
thylakoid membrane of the grana
Stroma of the chloroplast
mitochondria
nuclear membrane
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Multiple Choice
•An enzyme that fixes carbon from atmosphere to convert it to complex macromolecule glucose.
RuBP (Ribulose bisphosphate)
RuBisCo (Ribulose Bisphosphate Carboxylase)
PGA (3-Phosphoglycerate)
G3P (Glyceraldeyhyde 3-Phosphate)
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Multiple Choice
•Plants and plant-like organisms make their own food or energy (glucose) from sunlight.
Chemotrophs
Heterotrophs
Autotrophs
Saprophytes
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Multiple Choice
•The organelle responsible for photosynthesis:
Vacuole
Chloroplast
nuclear membrane
mitochondria
Cytoplasm
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Multiple Choice
Main products of the Calvin Cycle
Oxygen, NADP+, ADP
Glucose, CO2, ADP
ADP, NADP+, Glucose
ATP, NADPH, Oxygen
By R. Marsh Ph.D.
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