Chapter 6 Flashcards
ATP is made of
adenosine
3 phosphate groups
add a phosphate to ADP forming
ATP (endergonic)
removing a phosphate to ATP forming
ADP (exergonic)
all cells make ATP from
glucose and oxygen
to make ATP plants must first
go through photosynthesis
to make ATP animals must
eat plants
taking stored energy and turning it into usable energy
cellular respiration
cellular respiration produces
32 ATP from 1 glucose
energy units needed to raise 1 kg water to 1 degree C
kilocalories
glucose’s carbon-hydrogen bonds break
redox reaction
electrons lost by food
redox reaction
power uphill process that produces ATP
redox reaction
one substance loses electrons to another
redox reaction
one goes through oxidation one goes through reduction
redox reaction
loses electrons or gains hydrogen ions
oxidation
increase in positive charge
oxidation
gains electrons or loses hydrogen ions
reduction
decrease in positive charge
reduction
lost electrons bind to electron carriers
electron transfer
carry electrons from one part of energy harvesting process to another
electron transfer
most important electron carrier
NAD
easily reversible
NAD
moves from empty state (NAD+) to full state (NADH)
NAD
NAD+ picks up 1 H+ and 2 electrons from food to become NADH
redox reaction
another electron carrier
FAD and FADH2
final energy acceptor
oxygen
3 steps of cellular respiration
glycolysis
krebs cycle
oxidative phosphorylation
glucose split into 2 molecules
glycolysis
many electrons are captured and CO2 is released
krebs cylce
NADH and FADH2 bring electrons
oxidative phosphorylation
glycolysis is
anaerobic (no oxygen needed)
the krebs cycle and ETC are
aerobic (need oxygen)
occurs in cytoplasm
glycolysis
splits glucose into 2 pieces
glycolysis
glycolysis produces
2 pyruvic acid molecules
2 NADH
2 net ATP
2 H2O
NADH moves on to the ETC
intermediate step (pyruvate oxidation)
pyruvic acid moves to krebs cycle in a new form
intermediate step (pyruvate oxidation)
each pyruvic acid molecule combines with
coenzyme A
Aceetyl coenzyme A is formed
intermediate step (pyruvate oxidation)
what is formed in the intermediate step (pyruvate oxidation)
1 molecule of CO2 and 1 NADH
2 Acetyl COA
2 CO2
2 NADH