Flashcards in Test 3 Deck (194)
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1
The outer envelope of chloroplast contains several kinds of ______, mitochondria have one.
porins
2
The inner envelope membrane of chloroplast is _______ ________, meaning it (does/does not) allow fluid to pass through.
highly impermeable, does not
3
The thylakoid membrane of chloroplast is flattened into sacs and the space inside is called the _____.
Lumen
4
The __________ _________ of chloroplast contains the photosystems, ETC, and ATP synthase.
thylakoid membrane
5
__________ contain a single outer membrane and the inner membrane has cristae joined to it at the organelle boundary.
Mitochondria
6
The ________ of chloroplast contains the Calvin cycle, circular ds DNA, and ribosome.
stroma
7
The ________ of chloroplast contains a high concentration of protons.
lumen
8
Photosynthesis is the reverse of _______.
Respiration
9
Respiration is the reverse of ______.
photosynthesis
10
________ reduces O2 to water while _________ oxidizes water to O2.
Respiration, photosynthesis
11
____________ reactions occur on membranes where light energy is absorbed and stored in ATP and NADPH.
Light-dependent
12
___________ reactions use energy from ATP and NADPH to synthesize carbohydrates.
Light-independent
13
Light-independent reactions are also known as the _____ ______. However, this is wrong because it can happen in the light also. It is also call _____ _____. This is more accurate.
dark reactions, carbon fixing
14
____________ are the primary photosynthetic pigments.
Chlorophylls
15
What is the structure of chlorophylls?
porphyrin ring + phytol ring
16
Chlorophylls absorb ___ and ____ light while reflecting _____ and _____ light.
blue/red, green/yellowish
17
_____ are secondary light collectors. They draw excess energy from _____ preventing production of singlet oxygen.
Carotenoids, chlorophyll
18
What is the structure of carotenoids?
a linear system of double bonds (C=C)
19
Carotenoids absorb _____ and _____ light. They reflect ____, ______, and _____ light.
blue/green, red/orange,yellow
20
Chlorophylls and carotenoids are found in _____.
chloroplasts
21
Photons with shorter wavelengths have _____ energy.
greater
22
Photons with _____ wavelengths have lower energy.
longer
23
The number of orbitals an electron can exist in is limited, so ______________________________.
only certain wavelengths of light can be absorbed
24
Energy in photosynthetic units can only pass to pigments that accept ____ or _____ _____.
equal or longer wavelengths/lower energy photons
25
_____________ ________ _______ pass energy through the photosynthetic units to the reaction center.
Light-harvesting antenna pigments
26
Where are the photosystems found in chloroplasts?
thylakoids
27
Which of the following would you not expect to find in the stroma?
A high concentration of protons.
28
Which statement contrasting photosynthesis and respiration is incorrect?
Photosynthesis uses an ETC, while respiration does not.
29
Non oxygenic photosynthesis uses _________ as the reducing agent and ________ as the oxidizing agent.
H2S: CO2.
30
