Ch 9.3 - Cellular Respiration
What is a pyruvate molecule?
1/2 of a glucose molecule.
How many ATP are produced by the Krebs cycle for each molecule of glucose?
2
How many pyruvates are produced from ONE glucose molecule?
2
What are the products of the Krebs cycle?
2 ATP and CO2
How many ATP molecules are produce in the electron transport chain during cellular respiration?
34
Products of aerobic cellular respiration
6CO2 +6H2O + Energy (ATP)
When ATP releases energy it becomes this:
ADP (Adenosine Diphosphate)
What is the storage form of energy called?
ATP
Anaerobic cellular respiration occurs in what organisms?
All of them! Bacteria, fungus (yeast), animals, plants.
Compare and contrast aerobic and anaerobic respiration
Both processes start with glucose and glycolysis. Aerobic respiration uses oxygen, anaerobic respiration does not. Aerobic produces 36 ATP; anaerobic produces 2 ATP.
Cellular Respiration Formula
C6H12O6 + 6O2 ------> 6CO2 + 6H20 + Energy (ATP)
Reactants of aerobic cellular respiration
C6H12O6 +6O2
What are the products of alcoholic fermentation?
CO2 and ethyl alcohol
Electron Transport Chain
Electrons from glucose are used to make 34 ATP. Oxygen accepts final electron to form H2O.
What is the first step of cellular respiration?
Glycolysis
Which part of cellular respiration takes place in the cytoplasm?
Glycolysis
Steps of aerobic cellular respiration
Glycolysis, Krebs Cycle, Electron Transport Chain
Steps of anaerobic cellular respiration
Glycolysis, lactic acid fermentation
The site of the electron transport chain
Inner membrane of the mitochondria
What is the product of lactic acid fermentation?
Lactic acid
Name 2 types of fermentation
Lactic acid, alcoholic
Which part of cellular respiration produces the most ATP?
The Electron transport chain (net 34 ATP per glucose)
Where does the Krebs cycle occur?
The matrix of the mitochondria
In what organelle would you find the Kreb's cycle and the electron transport chain?
The mitochondria
Definition of cellular respiration
The process of breaking the chemical bonds in glucose to make energy (ATP)
What is the main event that occurs in glycolysis?
This process breaks glucose into pyruvate molecules. It produces 2 ATPs for each glucose molecule.
What does the suffix "lyse" mean?
To break
What does the term "glycolysis" translate to?
To break glucose
Aerobic
With oxygen
Anaerobic
Without oxygen
What is the name for the acronym ATP
adenosine triphosphate
What is the process of converting glucose into energy called?
cellular respiration
Where does glycolysis occur?
cytoplasm
Where does lactic acid fermentation occur?
cytoplasm
