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photosynthesis

biology

autotrophsobtain energy directly fromsun
heterotrophs rely on organic energy
6CO2+6H20+ENERGY=6O2+C6 H12 O6 photosynthesis equation
chemosynthesis autotrophs using inorganic compounds instead of sunlight
photosynthesis and respiration are? biochemical pathways
biochemical pathways series of reactions where one product of one reaction is the reactant of the next
who is only capable of photosynthesis? autotrophs
both autotrophs & heterotrophs perform? cellular respiration
in photosynthesis what is combined CO2 & H2O are combined to form C6 H12 06 (glucose) & O2 (oxygen)
what is combined in cellular respiration 02 is used to burn glucose & release CO2 H2O
useable energy released in cellular respiration is called? ATP
chloroplast in plant & algal cells absorb? light energy from sun during light reactions
photosynthetic cells may have thousands of chloroplast
chloroplast are? double membrane organelles with the inner membrane folded into disc shaped sacs called thylakoids
thylakoids containing chlorophyll & other accessory pigments are in? stacks called granum
grana are connected to each other surrounded by what? gel like substance stroma
light travels as waves and packets called? photons
top of wavelength peak
bottom of wavelength troughs
sunlight or white light different wavelengths & different amount of energy
a prism separates light in 7 colors ROY G.BIV (visible spectrum) (red orange yellow green blue indigo violet)
when all colors are absorbed it appears? black
when all colors are reflected it appears? white
if only one color is reflected? it appears that color
thylakoids contain? a variety of pigments
chlorophyll is the most common? pigments in plants & algae
what are the most common chlorophylls? C.A & C.B
chlorophyll absorbs only? red blue & violet light
chlorophyll b absorbs? colors or light energy NOT absorbed by C.A
the light energy in chlorophyll b is transferred to C.A in? the light reactions
Carotenoids accessory pigments in thylakoids that include yellow orange and red
H2O->O2+ATP+NADPH2 light reaction
ATP+NADPH2+CO2->C6 H12 O6 dark reaction
water is spilt giving off? oxygen
light reaction depends on? sunlight for activation energy
light is absorbed from chlorophyll a which? excites the electrons in the chlorophyll molecules
electrons are passed through a series of carries and... ATP is produced
light reactions take place in? thylakoids
carbon dioxide split providing carbons to make sugar
the ultimate product of dark reaction is? glucose
dark reaction is also called? Calvin cycle
dark reactions take place in? stroma
carbon fixation carbon atoms from CO2 are fixed into organic compounds
what is used in the calvin cycle? energy stored in ATP ad NADPH during the light reactions
photosystem a biochemical mechanism in plants by which chlorophyll absorbs light energy for photosynthesis. There are two such mechanisms ( photosystems I and II ) involving different chlorophyll-protein complexes.
chlorophyll b,c& d are? carotenoids
two types of photosystems? I & II
electrons from photosystem II?... replace the electrons that leave Chlorophyll molecules in photosystem I.
chemiosmosis making of ATP
chemiosmosis depends on? the concentration gradient of protons H+ across the thylakoid membrane
protons H+ are produced from the splitting of water in photosystem II.
concentration of protons is HIGHER in the thylakoid than in stroma
ATP synthetase makes ATP by adding a phosphate group to ADP
the calvin cycle is the... most common pathway used by autotrophs called C3 plants
plants in hot climates.. use alternate pathways to fix carbon & then transfer it to the calvin cycle
stomatas are? small openings on the underside for leaves for gas exchange
plants loose water through the day so they.. closed during hottest part of day & helped by guard cells
C4 plants... fix CO2 into 4 carbon compounds at the hottest part of day
RuPB ribulose biosphate
PGAL Glyceraldehyde 3-phosphate
Created by: swalker
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