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Which of the following is used by cells to store and release the energy needed to power cellular processes?
RNA
NADP+
ATP
DNA
Plants use the green pigment chlorophyll to __________________.
reflect sunlight
change light energy to heat energy
absorb sunlight
store sunlight
High-energy electrons are transported from chlorophyll to other molecules in the chloroplast by _______________________.
the thylakoid membranes
electron carriers such as NADP+
pigments such as carotene
the protein ATP synthase
The clusters of chlorophyll and proteins that absorb sunlight and generate high-energy electrons in the chloroplasts are called ______________________.
photosystems
transport chains
synthase proteins
carrier proteins
The light-independent reactions of photosynthesis are also known as the ___________________.
Calvin cycle
sugar cycle
carbon cycle
ATP cycle
The light-dependent reactions of photosynthesis occurs in the _____________ of the chloroplast.
cytoplasm
stroma
all of the above
thylakoid membranes
One of the products of photosynthesis is _______________.
oxygen
carbon dioxide
water
light energy
_______________ are organisms that make their own food.
Omnivores
Herbivores
Heterotrophs
Autotrophs
Which of the following organisms would be an example of a photosynthetic organism?
E. Coli
amoeba
Crab grass
tigers
Which of the following would be a reactant in the overall equation of photosynthesis?
Oxygen
Water
all of the above
Glucose
In order for the Calvin cycle to occur, ______________________ needs to be present.
ATP
Water
NADPH
Both ATP & NADPH
A chloroplast contains thylakoid stacks, called ___________, that are surrounded by fluid-filled __________.
none of these
stroma, grana
chloroplasts, cytoplasm
grana, stroma
The role of ___________ is to provide matter for making _________ which is the main output for photosynthesis.
carbon dioxide, water
oxygen, water
oxygen, sugar
carbon dioxide, sugar
In the diagram, an arrow leads from the splitting of water, to the two photosystems, and then to NADP+. What process is represented by this arrow?
the conversion of electrons into sunlight
the formation of high-energy sugars
the movement of electrons along the electron transport chain
the cycling of light energy within the photosystems
Which of the following organisms would undergo photosynthesis?
tulip
sunflower
pea plant
all of these
Which of the following gets "fixed" during photosynthesis?
Carbon
Glucose
Hydrogen
Oxygen
