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Bio chap 10

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During the Calvin cycle, carbon dioxide is _____, in order to drive the formation of sugars.
produced
destroyed
oxidized
reduced
reduced
What important molecule that is needed for cellular respiration is released when water is split in the light reactions of photosynthesis?
What important molecule that is needed for cellular respiration is released when water is split in the light reactions of photosynthesis?
chlorophyll
rubisco
oxygen
carbon dioxide
oxygen
The most abundant enzyme on Earth, which catalyzes the fixation of carbon dioxide in photosynthesis, is _____.
The most abundant enzyme on Earth, which catalyzes the fixation of carbon dioxide in photosynthesis, is _____.
carbon dioxidase
carotenoids
rubisco
chlorophyll
rubisco
Plant leaves contain openings called _____, which allow the diffusion of carbon dioxide into the leaf tissue.
Plant leaves contain openings called _____, which allow the diffusion of carbon dioxide into the leaf tissue.
stomata
CAM
calvins
mesophyll
stomata
According to the Z scheme, what is the path of electrons through photosystem I (PS I) and photosystem II (PS II)?
According to the Z scheme, what is the path of electrons through photosystem I (PS I) and photosystem II (PS II)?
PS II → pheophytin → plastocyanin → cytochrome complex → plastoquinone → PS I → ferredoxin
PS I → pheophytin → plastoquinone → cytochrome complex → plastocyanin → PS II → ferredoxin
PS II → pheophytin → plastoquinone → cytochrome complex → plastocyanin → PS I → ferredoxin
PS II → plastoquinone → pheophytin → cytochrome complex → plastocyanin → PS I → ferredoxin
PS II → pheophytin → plastoquinone → cytochrome complex → plastocyanin → PS I → ferredoxin
Why is photosynthesis so important to life on Earth?
Why is photosynthesis so important to life on Earth?
Photosynthesis captures light energy from the Sun and stores it in the bonds of glucose, which is then used during cellular respiration to drive the formation of ATP in all plants and animals.
Photosynthesis releases carbon dioxide into the air, which is then used during cellular respiration, which in turn drives the release of oxygen, completing the respiration cycle.
Photosynthesis breaks down glucose, which provides ATP for all plants and animals.
Photosynthesis is used to drive the formation of carbon dioxide, which releases the energy that allows the planet Earth to remain warm.
Photosynthesis captures light energy from the Sun and stores it in the bonds of glucose, which is then used during cellular respiration to drive the formation of ATP in all plants and animals.
Why can the rate of photosynthesis be estimated by measuring the rate of oxygen production in chloroplasts?
Why can the rate of photosynthesis be estimated by measuring the rate of oxygen production in chloroplasts?
Oxygen is produced by splitting CO2 in the PS II complex.
Oxygen is produced by "splitting" water in the PS I complex.
The Calvin cycle produces oxygen.
Oxygen is produced by "splitting" water in the PS II complex.
Oxygen is produced by "splitting" water in the PS II complex.
Why have biologists stopped using the once-common phrase "light-independent reactions" to describe the Calvin cycle?
Why have biologists stopped using the once-common phrase "light-independent reactions" to describe the Calvin cycle?
Calvin cycle enzymes are found in the same cellular location as photosystems I and II.
The Calvin cycle occurs only when stomata are open, which is triggered by light.
Biologists have discovered that its reactions are triggered directly by light.
Although its reactions are not triggered directly by light, they depend on the products of light-capturing reactions.
Although its reactions are not triggered directly by light, they depend on the products of light-capturing reactions.
What would happen in a chloroplast containing an unusual form of rubisco that did not bind oxygen?
What would happen in a chloroplast containing an unusual form of rubisco that did not bind oxygen?
Both photosynthesis and photorespiration would occur.
Photosynthesis would occur but photorespiration would not.
Neither photosynthesis nor photorespiration would occur.
Photorespiration would occur but photosynthesis would not.
Photosynthesis would occur but photorespiration would not.
Both photosystem I and photosystem II employ the use of a(n) _____, which drives the formation of ATP and NADPH.

calvin cycle
citric acid cycle
ferredoxin shuttling chain
electron transport chain
electron transport chain
Which statement is most accurate concerning how photosystem II (PS II) compares to the electron transport chain (ETC) of mitochondria?
Which statement is most accurate concerning how photosystem II (PS II) compares to the electron transport chain (ETC) of mitochondria?
The ETC associated with PS II shares no similar components with the ETC of mitochondria.
In both systems, ATP is produced by chemiosmosis.
PS II produces ATP by chemiosmosis; the ETC of mitochondria produces ATP by substrate-level phosphorylation.
In both systems, high-energy electrons come from NADH
In both systems, ATP is produced by chemiosmosis.
Which answer best explains why it is accurate to call the Calvin cycle a "cycle"?
Which answer best explains why it is accurate to call the Calvin cycle a "cycle"?
The NADPH and ATP it uses are recycled by the cell.
It uses ATP produced by cyclic photophosphorylation.
Calvin cycle enzymes exist as a cycle-shaped complex inside thylakoid membranes.
It regenerates a substrate of the first reaction.
It regenerates a substrate of the first reaction.
During photosynthesis, the light energy from the Sun is captured and stored in the bonds of _____.
During photosynthesis, the light energy from the Sun is captured and stored in the bonds of _____.
water
hemoglobin
oxygen
glucose
glucose
photosynthesis
using light energy to make carbs
autotrophs
make their own food
heterotrophs
obtain food from other organisms
calvin cycle
the reaction that reduce CO2 and produce sugar
chloroplasts
where photosynthesis happen
thylakoids
flat membrane that convert light to chem energy
grana
a stack of thylakoids is in grana, light reaction of photosynthesis occur
lumen
space in the thylakoids
stroma
fluid-filled space between the thylakoids and the inner membrane
pigment
molecules that absorb certain wavelength of light
wavelength
distance between 2 wave crests
visible light
light that humans can see
electromagnetic spectrum
range of wavelengths of electromagnetic radiation
photons
particles of light
chlorophylls
absorb light during photosynthesis
carotenoids
absorb light that isnt absorb in the chlorophylls