Aerobic and Anaerobic Cellular Respiration

what is the word equation for cell resp.

glucose + oxygen → carbon dioxide + water + energy

what the four stages of aerobic respiration

glycolysis, pyruvate oxidation, krebs cycle, oxidative phosphorylation

where does glycolysis take place

cyotplasm

where does pyruvate oxidation, krebs cycle, and oxidative phosphorylation take place

inside the mitochondrial matrix

what goes into the process of glycolysis

glucose, 2ATP, 2NAD+

what are the products of glycolysis

2 pyruvate molecules and a net of 2ATP

what happens in the process of glycolysis

starting 2ATP are turned into 2ADP, 4ADP are turned into 4ATP

2NAD+ is reduced to 2NADH

what type of reaction of glycolysis

anaerobic

what goes into pyruvate oxidation

pyruvate, coenzyme A, NAD+

what are the products of pyruvate oxidation

acetyl-coA

what happens during pyruvate oxidation

CO2 is removed

NADH is made

CoA - acetyl form acetyl- coA

why is pyruvate oxidation called the “link reaction”

bc it links glycolysis to the krebs cycle

what goes into the kreb cycle

acetyl coA

what is produced from the krebs cycle

1 ATP, 1 FADH2, 3 NADH

what happens during the krebs cycle

carbon atoms of coA are fully oxidized into 2CO2

acetyl coA joins 4C compound (oxaloacetate) to form citric acid

what happens in the electron transport chain

energy released is used to pump hydrogen ions across the membrane into the intermembrane

chemiosmosis occurs which is the production of ATP through a special protein called ATP synthase

what goes into chemiosmosis

hydrogen ions

what is produced in chemiosmosis

32 ATP

what happens in chemiosmosis

H+ ions flow through ATP synthase to create ATP

oygen acts as the final electron acceptor and joins with H+ ions to make H2O

what are the two types of fermentation

ethanol fermentation and lactic acid fermentation

what happens during ethanol fermentation

pyruvate is converted to CO2 and ethanol

reduced NADH is reoxidized (back to NAD+) so that glycolysis can continue

what happens during lactic acid fermentation

pyruvate is converted to lactic acid (lactate)

reduced NADH is reoxidized (back to NAD+)

what are the major differences between ethanol and lactic acid fermentation

ethanol fermentation uses acetaldehyde and produced CO2 along with ethanol instead of lactate