Bio Photosynthesis PPT Flashcards
(23 cards)
Definition of Autotrophs
sustains itself without eating anything derived from other organisms
Autotrophs produce: (2)
organic molecules / inorganic molecules
Almost all plants are ()
photoautotrophs
Photosynthesis occurs in (4)
plants, algae, protists, prokaryotes
Heterotrophs
obtains their organic material from other organisms.
heterotrophs and humans depend on () for food and O2
photoautotrophs
photosynthesis equation
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in photosynthesis, H2O Is ( )
oxidized
explain photolysis
when chloroplasts split H2O into water and oxygen
the light reactions in the thylakoid membranes do 4 things
- split H20
- Release O2
- REDUCE NADP+ TO NADPH
- generate ATP from ADP by photophosphorylation
light-dependent reaction: (2)
- add a phosphate group P, to ADP, making ATP
- Photolysis
ATP is
the energy storage molecule
NADPH is
the reduced electron carrier
thylakoids transform light energy ti chemical energy of ( ) and ( )
ATP , NADPH
( ) are the major locations of photosynthesis
leaves
chlorophyll is the ( ) () within chloroplasts
green pigment
() enters, () exits the leaf through microscopic pores called ()
CO2 , O2, stomata
Chloroplasts are mainly found in the () of the ()
cells, mesophyll
a mesophyll cell has () chloroplasts
30~40
during light reactions, there are two possible routes for electron flow which is
cyclic and linear
the primary pathway, involves both photosystems and produces ATP and NADP using light energy
linear electron flow
uses only photosystem and produces ATP but not NADPH
cyclic electron flow
the calvin cycle converts ( ) to ( )
co2, sugars
