Cellular Respiration Flashcards
What is ATP?
The energy molecule used in cellular work. A form of energy our bodies can use. The principal molecule for storing and transferring energy in cells.
Why is ATP useful energy?
Easily made, generated, and reused.
Summary equation for Cellular Respiration
C6H12O6 + 6O2 →6CO2 + 6H2O + ATP
Reactants ————–> Products
Glucose + Oxygen –> carbon dioxide and water + ATP.
Glycolysis reactants products (main role)
Glucose –> 2 ATP + 2 pyruvate
Glycolysis intermediate products (supporting role)
2 Pyruvates, 2 NADH, gets rid of H+
Where is Glycolysis located?
Cytoplasm
Krebs cycle reactant products (main role)
Pyruvate –> 2 ATP + others
Krebs cycle intermediate products (supporting role)
6 NADH, 2 FADH2, both electron carriers. Releases CO2 as a byproduct.
Where is the Krebs cycle located?
Mitochondria
Oxidative Phosphorylation reactant products (main role)
NADH and FADH2 dump electrons. Glycolysis and Citric Acid Cycle carry high energy electrons to be passed down through the chain slowly releasing energy. Releasing e- also means releasing H
ADP and P are squished together, forced to share electrons making them ATP. Protons rotate protein and push the two phosphates together.
Oxidative Phosphorylation intermediate products (supporting role)
Water (?)
Where is Oxidative Phosphorylation located?
Inner mitochondrial membrane
What are the two anaerobic processes?
Fermentation, alcoholic and lactic acid
Describe Alcoholic fermentation
Pyruvate is converted to Ethanol in two steps (in bacteria and fungus)
CO2 is released from pyruvate, pyruvate is converted to acetaldehyde
Acetaldehyde is reduced (given by electrons) by NADH to ethanol, regenerating a supply of NAD+ to continue more glycolysis
Describe Lactic Acid fermentation
Pyruvate is reduced directly to form lactate (which converts to lactic acid) and no CO2 (Animals, fungus, and some bacteria
