Cellular Respiration I
3 steps of aerobic cellular respiration
Glycolysis, Krebs Cycle, Electron Transfer Chain
the source of all energy on Earth
The Sun
an organism that conducts lactic acid fermentation
Any animal
the number of ATP produced if aerobic cellular respiration is completed
32-38
when would humans perform anaerobic cellular respiration
when oxygen is not readily available in environment, or when they are exercising heavily
the step of aerobic cellular respiration that produces the most ATP
Electron Transport Chain
The waste product that is a gas from the Krebs Cycle
CO2
acetyl-CoA binds with this carbon structure to make citrate
oxaloacetate
Cyanide affects which stage of cellular respiration?
Electron Transport Chain
reason why aerobic respiration is preferred over anaerobic respiration
aerobic respiration makes more ATP
the part of the cell where glycolysis occurs
the cytoplasm
The energy molecule used by all cells
ATP
What are the names of the 2 temporary energy molecules that carry electrons to the ETC
NAD+ and FADH
reactants for glycolysis
glucose & 2 ATP
for humans, where glucose that is used for glycolysis comes from
from food that is eaten
glucose is split into 2 molecules of what during glycolysis
pyruvate
what acts as the final electron acceptor in the ETC, keeping electrons moving, maintaining the H+ concentration gradient
oxygen
Net yield of the Krebs Cycle
2 FADH2, 6 NADH, 2 ATP
purpose of cellular respiration
produce energy for cellular work in the form of ATP
place where chemical energy is stored in ATP
In the chemical bonds
The net yield of ATP produced during glycolysis
2 molecules of ATP
ATP with 1 phosphate group missing
purpose of NADH and FADH2 donating electrons to channel proteins is to...
generate electrochemical gradient by pumping H+ ions
overall equation for aerobic cellular respiration
C6H12O6 + 6O2 --> 6CO2 + 6H2O (+ ATP)
kind of biomolecule ATP is
Nucleic Acid