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Ch. 9 & 10: Cellular Respiration and Photosynthesis - Coggle Diagram
Ch. 9 & 10: Cellular Respiration and Photosynthesis
cellular respiration
breaks down organic molecules for the production of ATP
mitochondria
substrate phosphorylation
oxidative phosphorylation
glucose gets oxidized, oxygen gets reduced
GPKE (Giant Panda's Killed Einstein)
pyruvate oxidation
CoA receives carbons from pyruvate
reactants: 2 pyruvate; products: 2 acetyl-CoA, 2 carbon dioxide, 2 NADH
occurs in mitochondrial matrix
OIL RIG
oxidation is loss, reduction is gain
kreb's cycle (citric acid cycle)
acetyl-CoA binds to oxaloacetate
four carbon molecule already present in the mitochondrion
forms citric acid
goes through multiple steps in which two carbon atoms are removed
each turn of cycle generates 1 ATP, 1 FADH2, 3 NADH
2 more items...
released as carbon dioxide
six carbon molecule
occurs in mitochondrial matrix
glycolysis
"glykos" = sweet ; "lysis" = split apart
reactants: glucose, 2 ATP; products: 4 ATP (net gain 2 ATP), 2 NADH, 2 pyruvate
breaks down glucose into two molecules of pyruvate
each pyruvate with 3-C (three carbon)
no oxygen required
anaerobic
occurs in cytoplasm
exergonic (energy released) and catabolic (breakdown)
electron transport chain
occurs in the inner membrane of mitochondria
makes use of high energy electron carriers (NADH + FADH2) to create a proton gradient
"chain" is this series of enzymes within inner membrane that pass electrons through them
creates high concentration of H+ ions within inter-membrane space
end of the chain electrons bind to hydrogen ions and oxygen to form water
chemiosmosis
occurs after ETC
final stage of cellular respiration
anabolic (building) and endergonic (requires energy)
ATP synthase
turns ADP to ATP using the energy from made in ETC from the movement of H+ ions
reactants: 10 NADH, 2 FADH; products: ~28 ATP / total: 30-38 ATP
photosynthesis
converts light energy to chemical energy
chloroplast
photophosphorylation
light reactions (light dependent reactions)
convert solar energy to the chemical energy of ATP and NADPH
water molecule gets split to release oxygen as a byproduct
provides necessary energy for calvin cycle
electron flows through the thylakoid membrane
NADPH
high electron energy carrier
occurs in thylakoids
photosystems
PSI + PSII
capture light energy and excite electrons + transfer then through an ETC
calvin cycle
uses energy from light reactions to incorporate carbon dioxide from the air into sugar (ATP and NADPH)
three phases
reduction
energy from ATP and NADPH used to convert PGA to G3P
G3P aka precursor to glucose
regeneration
molecules get rearranged to regenerate the starting RuBP
carbon fixation
each carbon dioxide molecule gets attached to RuBP
gets sped up by Rubisco (enzyme)
two PGA gets formed
3 turns make 1 G3P; 6 turns make 2 G3P = 1 glucose
occurs in stroma
water gets oxidized, carbon dioxide gets reduced
reverses the direction of electron flow in cellular respiration