photosynthesis terms Flashcards
(photon characteristics not included)
what is the meaning of the chemical equation of photosynthesis?
reduction of CO2 to a carbohydrate using light energy
where does all the O2 produced during photosynthesis come from
the oxidation water
(by looking at the chemical reaction)
chloroplast (what is it and its regions)
-it is where photosynthesis take place in for eukaryotes
- Thylakoid: where folded regions are (thylakoid compartment)
- Stroma: the area between the inner membrane and the thylakoids
where do photosynthesis and other metabolic processes happen in PROkaryotes
takes place on an internally folded membrane.
what does light sources have different types of? and how does it relate to photosynthesis.
photons. Because of different wavelengths, only certain wavelengths are involved in photosynthesis
pigments
molecules that absorb
chlorophylls
main photosynthetic pigment absorbs blue and red light
electrons held loosely by nucleus of Mg atom
accessory pigments
Can absorb photons of wavelengths that chlorophyll molecules can not absorb.
Pass light energy from these photons to chlorophyll.
how are pigments used in photosynthesis organized? and pigments used.
organized into photosystems (I
and II)
pigments used groups of chlorophyll and accessory pigments
-found on the thylakoid membrane
how is light converted to potential energy?
Chlorophyll removed from a chloroplast
chlorophyll in light: Green photons are reflected. Reds and blues are absorbed
when light is removed: Red and far red photons are released as electrons return to the lower energy state
Chlorophyll in a chloroplast
electrons that absorb photons can be passed to an electron transport chain
two stages in photosynthesis
- light reactions: light energy transferred to electrons: used to make ATP and high energy electron source for…
- dark reactions: Co2 reduced to a carbohydrate
