Cellular Respiration Flashcards
What is cellular respiration?
The enzymatic breakdown of glucose (C6H12O6) in the presence of oxygen (O2) to produce cellular energy (ATP)
What is the chemical equation for cellular respiration
C6H12O6 + 6O2 –> 6CO2 + 38 ATP
glucose+oxygen—> carbon dioxide+water+38 ATP
What is glycolysis?
A ten step orocess that occurs in the cytoplasm
what does glycolysis convert?
each molecule of glycose to two molecules of pyruvic acid (a 3-carbon molecule)
What kind of process is glycolysis?
an anaerobic process-proceeds whether or not O2 is present; O2 is not required
What is the net yeald of ATP per clugose molecule in glycolysis?
2 ATP
What is the net yield of NADH per glucose in glycolysis?
2
What is NADH?
Is nicotine adenline dinucleotide, a co-enzyme that serves as a carrier for H+ ions in the Electron Transport Chain?
What is the Link Reaction in glycolysis?
The pyruvic acid diffuses into the inner compartment of the mitochondrion (matrix) where a reaction occures to prepare pyrivic acid for entry into the next stage of respiration
What is the chemical equation for the link reaction in glycolysis?
pyrivic acid + acetic acid + co-enzyme A -> acetyl CoA + CO2 + 2 NADH
Where does the CItric Adic or Krebs Cycle occur?
Inner mitochondiral matric
What happeneds in the Krebs cycle?
The acetyl group detatches from teh co-enzyme A and enters the reaction cycle.
What kind of process in the Krebs cycle?
an aerobic process; will proceed only in the presence of O2
What is the net yielf of ATP per glucose molecule in Krebs cycle?
2
What is the net yield of NADH and FADH2 in the Krebs cycle?
6 NADH 2 FAD (serves the same purpose as NAD)