AEROBIC CELLULAR RESPIRATIONS & FERMENTATION

Catabolic pathways

(catabolism)- chemical pathways that release energy stored in chemical bonds by breaking them to release the energy. → produces ATP

ATP

is an energy molecule that allows cells to do work

Fermentation pathways

DON’T use free oxygen so they only partially break apart the food molecules and do not produce much energy

Aerobic cellular respiration pathways

Uses free O2 to throughly oxidize or breaks apart the molecule and release much more energy → more efficient.

metabolism

the flow of electrons

coenzymes

molecules that aid in the proper functioning of enzymes.

glycolysis

first step: breaking down sugar- occurs in cytosol. glucose (6c) → split into (2) pyruvates (3c) + (4) ATP total (2) NADH.

Pre-Kreb

second step: matrix of mitochondria- (2) pyruvates are oxidized into (6) CO2, (2) ATP, (8) NADH & (2) FADH2.

electron transport system

inner mitochondria membrane; oxidation phosphylation, (34) ATP

each NADH produces ? ATP

3

each FADH2 produces ? ATP

2

aerobic

needs oxygen

NAD+, NADG