krebs cycle oxidative phosphorylation

Question 1

formation acetyl
coenzyme a (derivative vitamin b)

Answer 1

pyruvic acid enters mitochondria and decarboxylation (remove co2) form 2C acetyl group & CO2
enzyme - pyruvate dehydrogenase
2C acetylene group attaches to coenzyme A form acetylene coenzyme A enters kreb cycle

Question 2

krebs cycle summary

Answer 2

2C part of acetylene coA pulled apart to release CO2 & H+ (sent etc as NADH2 FADH2)

acetyl CoA combines with 4C compound form citric acid - cycle

Question 3

kreb cycle product

Answer 3

each acetyl CoA produce
-2 CO2
-3 NADH2
-1 ATP
-1 FADH2
each glucose product 2 acetyl CoA so x2

Question 4

electron transport chain

Answer 4

in mitochondria
integral membrane protein/ cytochromes form chain, each pick up electrons and pass to next one
small amount energy released - used form atp

Question 5

summary aerobic cellular respiration

Answer 5

glucose broken down into co2 h2o energy
glycolysis 2 atp 2 nadh2 2 more nadh2 when convert pyruvate to acetyl coa

krebs cycle 2 atp 6 nadh2 2 fadh2

Question 6

summary aerobic cellular respiration 2

Answer 6

nadh2 make 3atp
10nadh2 make 30atp
fadh2 make 2 atp
2 fadh2 make 4 atp
glucose make 4 atp
oxidative phosphorylation make 36-38 atp from one glucose
(nadh2 from glycolysis form less)

Question 7

aerobic cellular benefit

Answer 7

H2 form various sources, funnelled, common carrier, atp