Li_Karen_Block 2_MM5
Chloroplast
inner membrane
thylakoid membrane
outer membrane
stroma - b/w inner & thyroidal membrane
thylakoid
granum - stack of thylakoid
stromal lamellae - connects granums; transports nutrients and other material needed to sustain the chloroplast
inside = inner thylakoid space
Photosynthesis
Light-dependent reactions
Calvin cycle (or light-independent reactions)
in Thylakoid
H2O + NADP+ + ADP → O2 + ATP + NADPH (requires light)
CO2 + ATP + NADPH → C6H12O6 + NADP+ + ADP + P
in stroma
Glucose is exported to the cytoplasm by facilitated diffusion
Provide high energy electrons that the Calvin cycle needs to make the covalent bonds for glucose molecules
Provide the energy needed to produce ATP that powers the endergonic processes of the Calvin cycle
Light Absorption & Electron Flow (Photosystems)
Energy is funneled to chlorophyll in both PSII and PSI, exciting electrons pairs
PSI electrons are donated to NADP+ & PSII electrons to the ETC, creating electron vacuums at both photosystems
Light is absorbed by all of the antenna pigment at PSII and PSI
PSI electron vacuum is filled using the PSII derived electron from the ETC
PSII electron vacuum is filled using electrons captured from water molecule by photolysis
Vocab/Extra
Primary production - the production that occurs at the first trophic level in autotrophs
Biomass - the total of all organic matter that come/came from living/formerly living organisms
Gross primary production (GPP) - the total amount of CO2 that is consumed by the plants in photosynthesis; an account of the total amount of glucose made
Transfer efficiency is about 4%
The process of synthesizing food from sunlight, CO2, and H2O by autotrophs
Net primary productivity (NPP) - the remainder of GPP after respiration has consumed some of the glucose
(NPP = GPP - respiration)