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AP Biology: Photosynthesis Flashcards | StudBud
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AP Biology: Photosynthesis
AP Biology: Photosynthesis
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Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
Which of the following is NOT directly associated with Photosystem II?
harvesting light energy by chlorophyll
reduction of NADPH
release of oxygen
splitting of water
2
Using NADP reductase to create NADPH represents what type of reaction?
Oxidation
Decomposition
Reduction
Redox
3
What is the organelle called that is pictured here?
Cristae
Stroma
Thylakoid Membrane
Matrix
4
What is the product of the Calvin cycle that is the predecessor of glucose?
G3P
RuBP
NADPH
Rubisco
5
Which statement about chlorophylls is
false
?
Chlorophylls contain magnesium
Excited chlorophyll cannot be an oxidizing agent.
Chlorophylls accept energy from other pigments
Chlorophylls absorb light atboth ends of visible spectrum.
6
In photosynthesis, NADPH is used for the
formation of 3-phosphoglycerate (3PG).
reduction of O2 to water.
reduction of 3-phosphoglycerate (3PG).
regeneration phase of the Calvin cycle.
7
The light reaction and Calvin Cycle are part of what type of photosynthesis?
CAM
C4
C3
None of the above
8
Which one of the following reactions is
not
an oxidation–reduction reaction?
R—CH=CH—CH3 + H2O ↔ RCH2—CH(OH)—CH3
AH2 + B ↔ A +BH2
NADH + O2 + H+ ↔ NAD+ + H2O
FAD + H2O ↔ FADH2 + O2
9
How many turns of the Calvin cycle are required to produce one molecule of glucose?
3
6
2
1
10
What is the best conclusion about the mechanism of photosynthesis in the two plants?
A is a C3 plant, B is a C4 plant
A and B are both CAM plants
A is a C4 plant, B is a C3 plant
A is a CAM plant, B is a C4 plant
11
Which of the following does
not
happen in noncyclic electron transport?
Oxygen gas is released
CO2 reacts with RuBP.
Water donates electrons and protons.
ATP forms.
12
This type of photosynthesis uses a temporal modification
Cyclic Photophosphorylation
CAM
C4
C3
13
What reactant makes the oxygen that we breath in photosynthesis?
Energy
Carbon Dioxide
Glucose
Water
14
The
immediate
source of energy for ATP synthesis in chloroplasts is
the electrochemical proton gradient.
NADPH.
light
electron transport.
15
What is the structure pictured here called?
Cuticle
Palisade Layer
Guard Cells
Stomata
16
What is the best science course in the world?
AP Biology
It starts with AP and ends with Biology
Not AP Chemistry
Ok seriously there's no competition! Of course AP Biology
17
Photosynthesis and respiration have which of the following in common?
ATP synthesis rely on chemiosmotic mechanism.
a, b, and c
Both involve electron transport.
In eukaryotes, both processes are in specialized organelles
18
Building the proton gradient and movement of H+ ions is indicative of what process?
Photophosphorylation
Chemiosmosis
Carbon fixation
Oxidation of NADPH
19
Where does the Calvin Cycle occur?
Matrix
Grana
Thylakoid Membrane
Stroma
20
CAM plants keep their stomates closed during the daytime to reduce excess water loss because...
they fix carbon dioxide into sugar in the mesophyll cells
modify rubisco so it does not bind with oxygen
can incorporate carbon dioxide into organic acids at night
they can use photosystems I and II at night
