5 Photosynthesis Flashcards
photosynthesis converts _____ energy into ______ energy
light into chemical
what is the main photosynthetic pigment?
chlorophyll
what inorganic ion produces chlorophyll?
magnesium
what is photolysis?
breakdown of water into H+,O and e- to replace excited e- in photosystem II
what is chemiosmosis?
movement of H+ from high to concentration, it is used to produce ATP
what is phosphorylation?
the addition of phosphate to a molecule
in which organelle does photosynthesis take place in?
chloroplast
what deficiency results in a lack of chlorophyl?
magnesium
what is the equation for photosynthesis?
6CO2 + 6H2O → C6H12O6 + 6O2
what are the 8 components fo a chloroplast?
- outer membrane
- inner membrane
- stroma
- thylakoids
- lumen
- granum
- lamela
- starch granule
where does the light-dependent reaction take place?
thylakoid membrane inside a chloroplast
where does the light-independent reaction take place?
stroma
what enzyme is used to convert ADP into ATP?
ATPsynthase
light energy and water go into the light-dependent reaction to make NADPH, compound x and gas y which are?
x= ATP
y= O2
T or F: light is needed for all aspects of photosynthesis
False
T or F: the electron acceptor in plants id NAD+
False
T or F: light energy raises the electrons in chlorophyll from their ground state to an excited state
True
T or F: the light-dependent reaction releases ATP
True
T or F: the oxygen released during photosynthesis comes from CO2
False
T or F: in photosystem II the electrons released by chlorophyll are replaced by electrons from water
True
T or F: the two photosystems are located in the thylakoid membrane
True
T or F: the thylakoid lumen becomes alkali during chemiosmosis
False
the light-independent reaction uses the products ____ and____ from LDR
ATP and NADPH
LIR is also known as the ______
Calvin cycle
what does the Calvin cycle form?
glucose
what are the three stages of the Calvin cycle?
- fixation
- reduction
- regeneration
what happens during fixation?
CO2 is attached to RuBP
what enzyme attached RuBP to CO2?
RUBISCO
what happens in the stage of reduction?
phosphorylation and the reduction of the fixed molecules
what happens during regeneration?
phosphorylation that results in the formation of the CO2 acceptor (RuBP I think)
how many GALP form one glucose?
2
