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44 Cards in this Set

  • Front
  • Back
Before photosynthesis evolved, _________ was rare in Earths atmosphere.
02
Products of Photosynthesis are
Glucose and Oxygen
What structural feature of a leaf allows a leaf to obtain CO2 from the air?
Stomata
Vast majority of choloroplasts found in a leaf are located where?
Mesophyll
Specifically molecules of chlorophyll are located in membranes of sacs called...
thylakoids
What factors influence the rate of photosynthesis?
light intensity, temperature, CO2, water
What is not required at some state of green plant photosynthesis?
oxygen.

REQUIRED: ATP, NADP, WATER, CARBON DIOXIDE
Cellular organelle of eukaryotic organisms which is responisble for photosynthetic activity is the...
choloroplat
scientist discovers a mutant plant seedling that appears to lack a stomata. Whats the effect?
CO2 would not be able to enter as a reactant for photosynthesis to occur
plant does not recieve an adequant amount of water, what is most affected by this?
Both the light dependent and lightindependent reactions of photosynthesis
the grana are disk-shaped, interconnected membranous sacs embedded in the stroma that form thlakoids when stacked on one another. T or F
false
majority of leafs chloroplasts are found in the mesophyll cells. T or F
true
chemical equation for photosynthesis?
6CO2+6H2O+light energy
how is the leaf adapted to capture energy from the sun and aquiring carbon dioxide and water?
C02 comes through adjustable pores, or stomata, and water comes from the vascular bundles (veins) to the mesophyll cells. leaves are broad and flat, so they provide a large surface area to the sun.
light dependent reactions occur in the
thylakoids
light indepedent reactions occur in the
stroma
the cells in the ____ layer of the leaf contain the mojority of a leafs chloroplasts
mesophyll
process of photosynthesis converts solar energy into ______ energy stored in the bonds of glucose
chemical
albino corn has no chlorophyll, you would expect these seedlings to ___________
fail to thrive
energy source in photosynthesis is...
visible light
energy is passed around different cholorphyll molecules until it reaches a specific chlorophyll molecule called the.....
reaction center
where are carotenoid pigments found?
in the thylakoid membranes of the chloroplasts
the pigments that absorb light energy to drive photosynthesis are
chlorophyll and carotenoids
pigment that absorbs red and blue light and reflects green light is
chlorophyll
which is NOT true of chlorophyll?
it is found in the mitochondria
which of the colors of light will be most effective for your indoor green plants?
red-blue
light-dependent reactions without ____ the system would shut down
water
replacement electrons for the reaction center of photosystem II come from
H20
sequence that accurately reflects the flow of electrons in photosynthesis is....
H20..photosystem II...photosystem I...NADP
The ATP and NADPH synthesized during the light dependent reactions are
dissolved in the stroma
what is produced in the electron tranport system associated with photosystem II
ATP
light dependent photosynthetic reactions produce..
ATP
where does the 02 realesed duing photosynthesis come from
h20
during photosynthesis solar energy is converted into
chemical energy
light-dependent reactions of photosynthesis result in what?
phosphorylation of ADP
role of water in photosynthesis?
to provide electrons
source of electrons used for reduction reactions by green plants?
H20
according to chemiosmotic theory, hydrogen ions cross the thylakoid membranes from the stroma by..
active transport
energy of the movement of electrons down their concentration gradient via electron transport within chloroplasts and mitochondria is used to generate molecules of
ATP
energy of the movement of electrons down a concentration gradient via electron transport within the thylakoid membrane generates ...
ATP
which process of photosythesis is linked to the production of ATP
photosystem II
suppose you are studying photosynhesis in a ;ab. you grow plants in a chamber with a source of water that has a radioactivity labeled oxygen atom. what photosynthetic product will be radioactive?
oxygen
glucose synthesis requires what?
products of energy-capturing reactions must be available
in light-dependent reactions. what does photosystem I and II generate?
I-NADH
II-ATP